solve x^2 = 4x by graphing and indicate the roots.?

Question

a. -4, 0
b. between -4 and 4
c. 2, -4
d. 0, 4

Answer 1

Algebraically, x^2=4x implies x^2-4x=0 so x(x-4)=0 means that x=0,4

Graphically, you need to graph the parabola x^2 and the line 4x and see where they intersect. The x-values where the two intersect should be x=0 and 4 as shown algebraically above.

Answer 2

The parabola y = x^2 and the line y = 4x intersect at (0 , 0) and at (4, 0 ).
So answer d

Th

Answer 3

d.