What is the vertex form of #y= x^2 -2x - 15#?
1 Answer
Jul 5, 2018
Explanation:
#"the equation of a parabola in "color(blue)"vertex form"# is.
#•color(white)(x)y=a(x-h)^2+k#
#"where "(h,k)" are the coordinates of the vertex and a"#
#"is a multiplier"#
#"to obtain this form "color(blue)"complete the square"#
#y=x^2+2(-1)x color(red)(+1)color(red)(-1)-15#
#y=(x-1)^2-16larrcolor(red)"in vertex form"#
