Question

What is the range of the function y = 4x + 3 for the domain 7 sxs

Answer 1

The given function is

$y=4x+3$

The given domain is

$7\leq x\leq10$

To find the range associated with this domain, we just have to evaluate the function when x = 7 and x = 10.

$\begin{gathered} y=4\cdot7+3=28+3=31 \\ y=4\cdot10+3=40+3=43 \end{gathered}$

Hence, the range is D.

$31\leq y\leq43$