Question

Help Please
Find the average rate of change for the function, f(x) = -3x2 + 2x – 5 over the interval -3 ≤ x ≤ 3.

Answer 1

No

Answer 2

What am I supposed to do?

Answer 3

It would be easier for this if you graphed it, and then find which 2 points is where x equals -3, which point is whne x=3

Can you tell me the two coordinates? (-3,_) and (3,_)

Answer 4

1. Graph it
2. Scroll down the points, and find where x=-3, where x=3

Answer 5

I have no idea.

Answer 6

Have you graphed it on desmos yet

Answer 7

Yeah. But I don't see any x=-3 or x=3

Answer 8

You won't, that's why you have to scroll down, graph the lines x=-3, and x=3
And see at which point the lines intersect the parabola

Or, you could also plug -3 and 3 into your equation to find the y value

Answer 9

...

Answer 10

I was just about to say I found it at -25 and -37 but I was off still

Answer 11

So then we find hte slope in between those 2 points

Can you do that?
(-3,-38)
(3,-26)

Answer 12

It's 2 right?

Answer 13

12*

Answer 14

...we want to find the slope
\[\frac{ -38-(-26) }{ -3-(3) }\]
\(\color{#0cbb34}{\text{Originally Posted by}}\) @RabbitLovely
It's 2 right?
\(\color{#0cbb34}{\text{End of Quote}}\)
yes

Answer 15

Oh okay

Answer 16

so wait that's it?

Answer 17

ye i think, unless they want you to right hte whole equation

but the rate of change is 2

Answer 18

Oh wow. Thank you so much

Answer 19

yw~