Question

Solve each equation by graphing the related function. If the equation has no real-number solution, write no solution. x^2+7=0

Can someone explain why the answer is no solution?

Answer 1

It is a quadratic.
If the quadratic was y=x^2, that graph would hit (0,0).
Your graph looks like that BUT is 7 units up on the y-axis. Thus it does not hit the x-axis, thus it has no zeros, thus it has no solution : )

Answer 2

thank you so much!