Question

The function f(x) = 6x^2 + 1 is defined over the interval [–2, 5]. If the interval is divided into n equal parts, what is the width of each interval, Δx?

5/n

6/n

7/n

8/n

Answer 1

@alexray19

Answer 2

hey!

Answer 3

hello!

Answer 4

So start by figuring out how wide the interval is...

Answer 5

As in the function's domain, [-2, 5]. How wide is that?

Answer 6

for example if I divide your interval by 2, I get:

since the middle point is:
(5-2)/2=3/2
so each subset is:
5-3/2=3/2-(-2)=7/2 wide

Answer 7

a length of 7

Answer 8

yea

Answer 9

so its c?

Answer 10

It is C

Answer 11

give them a medal

Answer 12

yes! that's right!