Question

The function graphed below is a cubic function.
f(a)=-f(2). Which of the following could be the value of a?

(See graph in comment!)

a) -2
b) -1/2
c) 0
d) 1/2
e) 2

Thank you!!!

Answer 1

This is the graph!

Answer 2

what is -f(2) from looking at the graph?

Answer 3

It's -4, right?

Answer 4

thats f(2), so -f(2) = -(-4) = 4 correct?

Answer 5

Yes, and from there I get lost :(

Answer 6

what is f(-2)?

Answer 7

Is that 0?

Answer 8

yes
f(-1/2) = ?

Answer 9

That's 8... What I don't get is, when they're asking for a, what are they asking for? :(

Answer 10

they are asking for f(a) = -f(2) and we found -f(2) = 4
so
we need f(a) = 4
so we need the value of a for which f(a) = 4

Answer 11

which is ?

Answer 12

1/2!!!

Answer 13

Awesome, I definitely got it now, I really appreciate it!!!

Answer 14

correct

Answer 15

np