SOLUTION: Please help me with this...i seem toget a different answer each time i have tried towork it..... find the x and y intercepts. If there are no x intercepts state this f(x) = x^

Question 313094: Please help me with this...i seem toget a different answer each time i have tried towork it.....
find the x and y intercepts. If there are no x intercepts state this
f(x) = x^2 +13x

i have worked it and come up with no x intercepts. just want to make sure that is correct
Answer by CharlesG2(834) (Show Source): You can put this solution on YOUR website!
"Please help me with this...i seem toget a different answer each time i have tried towork it.....
find the x and y intercepts. If there are no x intercepts state this
f(x) = x^2 +13x

i have worked it and come up with no x intercepts. just want to make sure that is correct"
f(x) is a function, it means y is a function of x, a function means there is only one x-value for every y-value
a x-intercept is where the function crosses the x-axis, it is where y=0
a y-intercept is where the function crosses the y-axis, it is where x=0
f(x) = x^2 + 13x
find x-intercept by plugging in 0 for f(x)
0 = x^2 + 13x
0 = x(x+13)
x = 0 or x = -13, so 2 x-intercepts
find y-intercept by plugging in 0 for x
f(0) = 0^2 + 13(0) = 0 + 0 = 0
the y-intercept is 0

RELATED QUESTIONS
i have tried to simplify this problem and each time i come up with a different answer.... (answered by jrfrunner)

I need help on this problem that I have been working on forever. Every time i tried it i... (answered by venugopalramana)

HI! please help me with finding this equation find the equation for the line... (answered by scott8148)

I have tried to do this question a a lot of time but My answer and the Graph is not... (answered by ankor@dixie-net.com)

I have tried to solve the equations many times, each time I come up with a different... (answered by Earlsdon,mananth)

Please help me understand this parabola question. Find the x- and y- intercepts of the... (answered by solver91311)

please help me figure out this word problem:"the ten digits of a two digit number is 3... (answered by richwmiller)

For problems1, 2, 3 a. Tell whether the systems of equation have no solution, one... (answered by solver91311)

Hi I am having trouble with a problem. I need to find x in a right triangle. The base is... (answered by josgarithmetic)