Question

Fran graphs the equations y = 2x2 – 2 and y = –0.5x + 4. Her graph is shown below. mc010-1.jpg Which value is an approximate solution of 2x2 – 2 = –0.5x + 4?

Answer 1

Answer:

x = -2 is an approximate solution of 2x2 – 2 = –0.5x + 4.

Step-by-step explanation:

Answer 2

On the added picture you can see that graphs of functions $y=2x^2-2$ and $y=-0.5x+4$ have two points of intersection. The x-coordinates of these points are the solutions of the equation 
$2x^2-2=-0.5x+4$.
Hence, the approximate solutions are x=-1.9 and x=1.6.