Question

Guided Practice

Evaluate y=9• ( 5 2 ) x ​ for x=− 3.


A.
–15.625


B.
0.036


C.
0.576

Answer 1

Answer: C. 0.576

9*(52)=468

x=-3

x= -1404

A.

–15.625

Explanation:

y=9*(52)(-3).

y = -1404

Plug in -3 for x and then multiply.

Let's solve for x.

(9)(52)xforx=−3

Step 1: Divide both sides by 468for.

468forx2

468for

=

−3

468for

x2=

−1

156for

Step 2: Take square root.

x=√

−1

156for

or x=−√

−1

156for

Answer:

x=√

−1

156for

or x=−√

−1

156for