SOLUTION: solve each equation by graphing the related function. i'm not sure what we're supposed to find, the zeros? i know the answer is (4, -4), but i'm not sure how to get this answer.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: solve each equation by graphing the related function. i'm not sure what we're supposed to find, the zeros? i know the answer is (4, -4), but i'm not sure how to get this answer.       Log On


   

Question 414116: solve each equation by graphing the related function. i'm not sure what we're supposed to find, the zeros? i know the answer is (4, -4), but i'm not sure how to get this answer.
x^2=16
x sqaured equals 16
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Solving:  That is, finding the values of x where the graph crosses the x-axis

x^2=16

x = ± 4    |Taking the square root of both sides of the Equation