Question

Please help with this math question !!!

Answer 1

M=-3
I copied cuz I needed points

Answer 2

m=-3

Explanation:

f(1)=-(1)^2+3(1)+8=-1+3+8=10

f(5)=-(5)^2+3(5)+8=-25+15+8=-2

m_avg=(f(5)-f(1))/(5-1)=(-2-10)/(5-1)=-12/4=-3