These will be the answers
The quadratic equation is f(x)=1/2x^2 -5
in order to find f(4) you simply insert 4 in place of C
f(4)= 1/2(4^2)-5
f(4)= 1/2 (16) -5
f(4)= 8-5
f(4)= 3
by double checking the graph you can verify the answer
The answer is c.16 because he spent 50 minutes on his homework and 32 percent of 50 is 16
This is an enlarged dilation