What is the y-intercept of the plane whose equation is 4x + 5y – z = 20? (Points : 1)
(0, 4, 0)

(0, 5, 0)

(5, 0, 0)

(0, 0, 4)

Question

What is the y-intercept of the plane whose equation is 4x + 5y – z = 20?      (Points : 1)
       (0, 4, 0)

       (0, 5, 0)

       (5, 0, 0)

       (0, 0, 4)

mchilds15 · Answer

Do you know where to start in order to solve this?

mchilds15 · Answer

The three numbers are what you plug in for x , y , and z . So, as stated in the equation, it must equal 20.... So what times 5, (the 5y in the equation, y being the y intercept), equals 20?

(If you know your multiples, this part is a piece of cake ;))