Given the function
f(x)=0.5|x-4|-3, for what values of x is f(x)=7?

a. x=-24, x=16
b. x=-16, x=24
c. x=-1, x=9
d. x=1, x=-9

7 = 0.5|x-4|- 3     add 3 to both sides: -
0.5|x-4| = 10        divide bs by 0,5:-
|x-4| = 20

either x - 4 = 20  or x - 4 = -20

this gives x = 24, x = -16

Yes. there is a constant ratio of number of calories to gram of protein.12/3=24/4=32/8=44/11=4