Ask your own question, for FREE!
Mathematics 12 Online
OpenStudy (anonymous):

Find the rate of change

OpenStudy (anonymous):

OpenStudy (anonymous):

ummm

OpenStudy (anonymous):

let me try

OpenStudy (anonymous):

okk

OpenStudy (anonymous):

answer choice?

OpenStudy (anonymous):

@aloud can you help me out?

OpenStudy (anonymous):

it's not any answer choices

OpenStudy (anonymous):

kind in a tight situation

OpenStudy (anonymous):

i have to go in couple min

OpenStudy (anonymous):

lol ya ik me to

OpenStudy (anonymous):

@H3LPN33DED help plz?

OpenStudy (anonymous):

@TillLindemann

OpenStudy (anonymous):

sorry dianolove idk this one i am only in geometry

OpenStudy (anonymous):

it's okk

OpenStudy (anonymous):

(1,2) (2,3)

OpenStudy (anonymous):

@braydenbunner

OpenStudy (anonymous):

@aloud, that would be an approximation of the rate of change

OpenStudy (anonymous):

however, at the point (2,3) -tangent to curve you would have an exact rate of change

OpenStudy (anonymous):

so the rate of change is (2,3)

OpenStudy (anonymous):

The way to solve this exercise is to first find the equation of the parabola, followed by the derivative of it and for that you will have to choose a particular x - value.

OpenStudy (anonymous):

like (2,1)

OpenStudy (anonymous):

What aboyt the reverse, @Hoslos , if you know the derivative at a point, can you integrate to find original function?

OpenStudy (anonymous):

Let us find the equation of the parabola, using the formula: \[y=a(x-p)^{2}+q\], where x,y is from any coordinate of the graph and p and q are the x and y - values of the vertex, respectively. The first attempt is to find a . Replacing values, we get: \[1=a(1-3)^{2}+2\] \[1=a(-2)^{2}+2\] \[1-2=4a\] \[a=-0.25\] Next we re-write the equation, by now putting a and the vertex coordinates, giving us: \[y=-0.25(x-3)^{2} +2\]

OpenStudy (anonymous):

Well, the rate of change will have to end at the derivative, which will mean the change in y with respect to x, @BPDlkeme234 .

OpenStudy (anonymous):

i'm sorry this is just hard

OpenStudy (anonymous):

As for the second part, you differentiate the equation of the formula: \[\frac{ d _{y} }{ d _{x} }= -0.5(x-3)\] There it is. Depending on the question, they would tell you a particular value of x runing in the graph. For instance let us say, when the x-value is 2. The rate of change will be \[-0.5(2-3)=0.5units/time\] Any question on differentiation, please ask.

OpenStudy (anonymous):

thanks for tryin i still dont get it but thanks

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!