Question

I really need some help, A.S.A.P???

Answer 1

Which of the following quadratics have the greatest rate of change from x=-3 and x=3? Include the work and answer for each.

Answer 2

@phi

Answer 3

I would find the equation that has the biggest difference in their y-values at x=-3 and then at x=+3

Answer 4

What is their y- value?

Answer 5

in the case of A, it is the 2nd number in the (x,y) pair

in the others, you have y =
fill in x with -3 and calculate what y is

Answer 6

which (x,y) pair there is two --> (-3, -1) and (3,6)

Answer 7

the question asks for the greatest rate of change... think change in y divided by change in x

the change in x from -3 to +3 is 6 (for all of the choices)

the change in y is the y value at x=3 minus the y value at x=-3

Answer 8

Would the change in Y be 5

Answer 9

the y change would be 6 - (-1) = 6+1 = 7

Answer 10

so you divide 7 by 6??

Can you tell me what the quadratic equation would be for 'A' please?

Answer 11

we could, but will will divide all of the choices by 6. This will not change which changes fastest.

so just make a note: choice A has a change in y of 7

now what is the change in y for choice B ?

Answer 12

choice B you should find a change of zero

now what is the change in y for choice C ?