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.
