Question

-x if x si Find f(7) for f(x) = 3 x + 5 if 15x<2 x? if x 22

Answer 1

Answer:

$f(7) = 49$

Step-by-step explanation:

Given

$f(x) = \left[\begin{array}{cc}3x+5&1.5 2\end{array}$

Required

Determine f(7)

To do this, we make use of

$f(x) = x^2$

Because $7 > 2$

So, we have:

$f(x) = x^2$

This becomes:

$f(7) = 7^2$

$f(7) = 49$