Question

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

Answer 1

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.