increase= 31° F
Explanation
Step 1
Graph
let x represent the increase in temperature,then
[tex]-8+x=23\text{ Expression}[/tex]now, to find the increase, solve for x
[tex]\begin{gathered} -8+x=23\text{ Expression} \\ \text{add 8 in both sides} \\ -8+x+8=23+8 \\ x=31 \end{gathered}[/tex]so the increase is 31° F.
I hope this helps you
