The x- intercepts of a parabola are (-5,0) and (3,0) what is the function of the parabola??

1 Answer
Feb 28, 2018

#f(x)=x^2+2x-15#

Explanation:

#"any zero "x=a" has a factor "(x-a)#

#"here zeros are "x=-5" and x=3#

#rArr"factors are "(x+5)" and "(x-3)#

#f(x)=(x+5)(x-3)#

#color(white)(f(x))=x^2+2x-15larrcolor(blue)"is a possible parabola"#