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Mathematics 15 Online
OpenStudy (anonymous):

help, medal and fan The following is the graph of f(x) = 3(x - 3)2 + 1.

OpenStudy (anonymous):

Mehek (mehek14):

what do you think?

OpenStudy (anonymous):

do i solve the problem?

Mehek (mehek14):

All you have to do is find out if it's true or false

OpenStudy (anonymous):

There are a couple different ways you could approach this. The equation is already provided, you just need to know if it's the correct equation for the graph. You could pick points on the graph and plug them into the equation to see if they fit, or just think back to the vertex form equation...

OpenStudy (anonymous):

i know, but how do i know? like should i solve the problem for x to see if its right? online schooling gets confusing

OpenStudy (anonymous):

woo, getting more confussed, to many people replying, my computer being slow to catch up lol

Mehek (mehek14):

no it's true plug in (3,1) \(f(x) = 3(x - 3)^2 + 1\\1=3(3-3)^2+1\\3-3=0\\0^2=0\\3*0=0\\1=1\) another point (2,4) \(4= 3(2 - 3)2 + 1\\4=3*-1^2+1\\-1^2=1\\3*1=3\\3+1=4\\4=4\)

Mehek (mehek14):

@sohailiftikhar is wrong

OpenStudy (anonymous):

i see what you mean @Mehek14 .

OpenStudy (anonymous):

@Penguin7 , I agree with @Mehek14 !

Mehek (mehek14):

how am I wrong when the solutions are correct?

Mehek (mehek14):

if you want more proof, why don't you graph it using desmos?

OpenStudy (anonymous):

desmos confuses me..just saying lol

Mehek (mehek14):

because that is one of the points in the parabola

Mehek (mehek14):

so it has to be a solution in the equation if the equation is true

Mehek (mehek14):

the output of x=1 is not shown in the graph that @Penguin7 attached

OpenStudy (anonymous):

Using the vertex form equation, -h is how far the graph moves to the right and +k is how far up it moves. Your graph moved 3 to the right and 1 up so that gets you to y=a(x-3)^2+1

OpenStudy (anonymous):

to find a, you can plug in values...(2,4) and (4,4) are clearly visible on the graph.

Mehek (mehek14):

this matches the graph that was attached

Mehek (mehek14):

you have (3,1), (2,4), and (4,4) in both graphs

OpenStudy (anonymous):

so, can we all agree that @Mehek14 is right?

OpenStudy (anonymous):

@Penguin7 , yes!!! @Mehek14 is correct. If it helps you decide at all, I am a math teacher. :)

OpenStudy (anonymous):

okay. well, i hope both you and @Mehek14 are okay will me taging u both..bc i know ill need help.

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