What are all the intercepts for #y=x^2+13x+36#?

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Answer 1 · 2016-10-07T10:11:37

x-intercept is -4 and -9 while y-intercept is 36

To find x-intercept,use y=0

when #y=0#

#y=x^2+13x+36#
#0=x^2+13x+36#
#(x+9)(x+4)=0#
#x=-4,x=-9#

To find y-intercept,use x=0

when #x=0#

#y=x^2+13x+36#
#y=0^2+13(0)+36#
#y=36#

graph{x^2+13x+36 [-12.45, 0.03, -2.845, 3.4]}