Write the equation of the line that has a slope of -4 and goes through (3,-3)

The functional equation of the line is f (x)=a*x+b
you have already a: -4 -->f (x)=-4 x+b
Now you can use the point (3;-3)
3 is the x-coordinate and -3 the f (x)-coordinate
--> -3 = -4*(3) + b Now you can solve it
-3 = -12+b (+12)
b = 9
ANSWER: f (x) = -4x + 9

Dbc if u do the math and stuff that what i got let me know if i was wrong

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