[March SAT Math] Everything You Need To Know - Functions Full Review

[@JohnSAT]

Videos Mentioned 29:33 - Discriminant Guide (kzbin.info/www/bejne/lYrWpWyMl7eFbbc) 31:55 - Matching Rule Guide (kzbin.info/www/bejne/r4rIenmpl95nqrM)

[@mo7ammed150]

Thanks

[@haniakhan7737]

can we just appreciate how he has a paid course but he still releases these helpful videos for people who can't afford it

[@fatimaambreen]

29:22 do u know where that -1 came from in the vertex form

[@ruslanmusekeev8927]

​@@fatimaambreen there is given quadratic equation where y=-x² - 6x - 5 vertex form is a*(x-h)²+k -h is value of x and k is the value of y -1 is represented as a Quadratic form is ax²-bx-c The given one has -x² where a is -1

[@fatimaambreen]

@@ruslanmusekeev8927 oh thank u now i finally understand it

[@EmilyDuncan-t3q]

No kidding

[@darknessgaming1459]

Hey!! In composite functions F(G(x)) should be = 2(-5x+1)+3, NOT -5(2x+3)+1

[@Rasgisri]

Exactly ❤

[@nzamuyekingarmando5718]

that's what I think

[@F1RSTFACT]

Why can you explain pls !!!!!!!!!!!!!!!!!

[@SanjarAbdullayev-x8c]

Exactly. I thought while he was writing the opposite form of equation.

[@SanjarAbdullayev-x8c]

​@@F1RSTFACT Yes look you were asked to find f(g((x)) F(x) = blalbla G(x)= blabla The first thing you must do is to plug the g(x) and then f{x} Understood?

[@AlexisLopez-ev5in]

2:40 Wouldn't that be 2(-5x+1)+3 instead?

[@AlexisLopez-ev5in]

I would like to ask another question, in this excercise 24:10 . Why does the equation have roots if it doesn't touch the x-axis? Maybe I'm mixing concepts but I haven't quite figured that out yet

[@thecharlie1827]

Yeah it’s 2(-5x+1) he did it wrong

[@thecharlie1827]

@@AlexisLopez-ev5inthe only way it’s possible is if you introduce imaginary numbers: i = square root of -1 Which would give you the roots : x1 = 2+2i and x2 = 2 -2i

[@freida1498]

2:45 is misleading! f(g(x)) is incorrect. What you wrote down there is indeed g(f(x)).

[@Marco-wb4dd]

30:41 the answer is y=1 and its not on the answer bullets

[@ian6882]

Thanks i was wondering lol

[@Iroda_0411]

I was struggling with these topics for a long time. Thank youu for this video

[@AngelOkonkwo-l3p]

Thanks so much for the videos Keep up the good work

[@nmassnja8549]

brooooo i got form 560- 670 brrooo. just now. becauseI i watched 2 of ur videos .TMR is my test Jesuss.

[@Stephanie-l8h4f]

Sameeee. August DSAT tomorrow and I have 630 in math on my last practice test

[@Agalarov97]

2:51 isn't it G(F(x) that you did show? F(G(x) is 2(-5x+1)+3= -10x+1. Please help

[@ankur9662]

how come no one else found that error :(

[@Agalarov97]

@@ankur9662 I think they did. You can find it in the comments

[@Pastelpinkplz]

i thought i was doing it the wrong way ;-;

[@Mate_Tsirghvava]

2:50 bro at least mention the error in the description

[@dikshantaryal6258]

2:50 Reverse!! You did G(F(x)) there.

[@yusufkaya1393]

yeah he forget that i was also confused for second aswell.

[@Agalarov97]

@@yusufkaya1393 10 years of teaching and he still did that?!!

[@getyourownfishnow2459]

Do more Math concepts

[@vqxm7]

pls make more math vids i have my dsat in may and i love your vids

[@nur-e-jannatanika7328]

Hi John! Is this applicable for DSAT as well?

[@JohnSAT]

Absolutely. SAT and DSAT are essentially the same exam testing you on the same thing.

[@nur-e-jannatanika7328]

@@JohnSAT Thanks! Your videos are way too helpful

[@taghreed9264]

Thank you for the full review Can you please do full review for advanced?

[@SaraMahmasani]

Your videos are very helpful thank u so much for ur hard work👍👍

[@fatimaambreen]

29:22 do u know where that -1 came from in the vertex form

[@SamuelAdibene]

Please teach me how to plot graph of y=5x+4, by simple observation

[@payamezzati9327]

let me explain, when x=0 Y will be equel to 4. So one of our point is (0,4). When y=0, X will be equl to -4/5(or -0.8), so our second point is (-0.8,0). by puting these 2 point on a graph we can draw our lovely little graph, I hope this explanation will help you to understand this topic. In general, in order to be able to draw a linear graph we only need the information of 2 points, and the easiest way to find the coordinate of them is puting 0 to either of variables and finding the other one(because 0 automatically elemant anything next to it)

[@San_ju_ya]

A new subscriber 🙋🏻‍♀️

[@IfyPatrick-ew9lj]

Thank you God bless you 🙏🤗

[@NyerovwoEnibe]

Thank u sooo much,May God Bless you ❤

[@SanjarAbdullayev-x8c]

@JohnSAT Thank you very much. Your lesson is the best. Just perfect

[@adhamjon_norkulov]

12:18 - Lines

[@tamara_reads]

Use desmos for systems of equations

[@mohammedahmed-if8dv]

How can I inter ur course

[@parshvajain-hb9hl]

2:23 Composite functions you did wrong please student see other video for composite functions

[@mamoako1521]

18:22 TS

[@DenSIRRR23]

At point of intersection between two lines, the value of y is the same.

[@lisswemo9715]

thank you so muchhh

[@JohnSAT]

you're very welcome!

[@fatimaambreen]

29:22 do u know where that -1 came from in the vertex form

[@SaraMahmasani]

The rule is y=a(x-h)^2+k and in the equation a=-1 so you just plug it in

[@aditichawla]

the equation initially had a negative (-) sign in front of it [-x^2-6x-5] and when he made it into -[x^2+6x+5] (making all the coefficients positive), he factored out the negative one and the equation became -[x^2+6x+5]

[@mo7ammed150]

Hi john, How i can start to prepare for Math SAT like which basics i need start to learn and from which book or website i can study I'm weak in math

[@JohnSAT]

Hey! if you want to maximize your math section, I recommend watching this video to understand how to study for the math section kzbin.info/www/bejne/f5C7laxvZ7mXp9k And follow this study plan: kzbin.info/www/bejne/iZvLgn9rlsucoqs

[@JohnSAT]

For the basics needed for the SAT, look at the first 5 concepts listed here: www.admissionhackers.com/25concepts

[@mo7ammed150]

@@JohnSAT Thanks

[@prakashghimire7158]

10 years Experience ! , I thought you were about 20 -22 years of age on first look

[@speakenglishdaba-gw8zd]

question 11 : desmos for the digital one ..

[@AlusineBarrie-jd8xp]

YO... Are these also applicable for the Digital SAT?

[@subathrakrishnamoorthy7517]

yep

[@KomalSingh-wo8mp]

Make a vedio on linear and exponential growth plzzzz ❤

[@asadbekalishev]

you have a mistake or you confused with f(g(x))

[@UnknownUnknown-pj6tg]

Who’s taking the digital sat in 4 nov ?

[@Sushil_Sharma52]

❤❤❤

[@SurajMahata-n3o]

Hello bro b=2+b is only =2 b is cut not value is 4😂

[@arifulrahman46]

Plz suggested me an sat English Channel.... And suggests me some topic about english...so that i can easily score Inn english 600

[@mohammedahmed-if8dv]

..

[@MarcusJun]

w vid

[@sushilkumarchincholi3813]

i don't have last name, i am facing problem in collage board account creation plz help me out so that i can take october SAT Exam plz help me brother

[@Cr1Ro7]

W

[@speakenglishdaba-gw8zd]

any MOROCCAN HERE ??

[@Ackmipro]

dismos solves everything

[@SanjarAbdullayev-x8c]

What about your brain. What is it doing in your head

[@Iroda_0411]

​@@SanjarAbdullayev-x8c😂😂

[@muhammadahmed4976]

you did the opposite at the start f(g(x))