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`