Solve the systems of equations y=2x-4 y=x2-4

Step-by-step explanation:

Write the problem as a mathematical expression.

y =2x−4

y=x^2−4

Substitute  x^2 − 4  for  y  into  y = 2 x − 4  then solve for  x .

x^2-4 = 2x-4

x=0,2

Substitute  2  for  x  into  y = 2x-4, then solve for y. Do the same with 0.

y = 2(2)-4

y=4-4

y=0

y = 2(0)-4

y = 0-4

y=-4

Solution set:

(0, -4)

(2, 0)

I hope this helps.