how do you find the x-intercept of a function?

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how do you find the x-intercept of a function?

Guest Dec 3, 2014

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Best Answer

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If the function is quadratic and you are given a formula

set f(x)= 0 or y = 0 and solve for x by factoring

F(x)= x^2 + 5x + 6

0= (x+2)(x+3)

x+2= 0 OR x+3=0

x= -2 x= -3

Guest Dec 3, 2014

1⁺⁰ Answers

+5

Best Answer

If the function is quadratic and you are given a formula

set f(x)= 0 or y = 0 and solve for x by factoring

F(x)= x^2 + 5x + 6

0= (x+2)(x+3)

x+2= 0 OR x+3=0

x= -2 x= -3

Guest Dec 3, 2014

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