# How do you solve the equation #2x^2=x+15# by graphing?

##### 1 Answer

Jan 17, 2017

#### Explanation:

Given -

#2x^2=x+15#

Have it as -

#-2x^2+x+15=0#

#y=-2x^2+x+15#

Its vertex is

#x=(-b)/(2a)=(-1)/(2 xx(-2))=1/4=0.25#

After finding the vertex take a few points on either side of it.

Calculate their corresponding

Plot them on a graph.

Take the coordinates where the curve cuts the x-axis.