Answer:
[tex]y=-129.1[/tex]
Step-by-step explanation:
You're pretty much given everything so just plug the x into the equation!
You first start off with the equation:
[tex]y=\frac{7}{4}x-90.6[/tex]
the problem states that the [tex]x=-22[/tex]
so plug the x in the problem:
[tex]y=\frac{7}{4}(-22)-90.6[/tex]
first, multiply the [tex]\frac{7}{4}[/tex] and [tex]-22[/tex] which becomes:
[tex]y=(-38.5)-90.6[/tex]
then you just subtract:
[tex]y=-129.1[/tex]
