Question 615331
f(9)
f(x)=2x+10
f(9)=2(9)+10
f(9)=18+10
f(9)=28



f(-7)
f(x)=2x+10
f(-7)=2(-7)+10
f(-7)=-14+10
f(-7)=-4



f(0)
f(x)=2x+10
f(0)=2(0)+10
f(0)=0+10
f(0)=10