Question

http://i180.photobucket.com/albums/x279/chickxoxox17/graph1.png

FACTORING MY GRAPHING! I DON'T UNDERSTAND!!! PLEASE HELP ME

Answer 1

the graph intersects the x-axis in two places, do you see that ?
what are those two places ?

Answer 2

at what values of x ?

Answer 3

x = -5
x = -3
Since its a quadratic its an order 2. Therefore:
(x+5)(x+3)

Answer 4

so the answer is 2?

Answer 5

let's go back a bit.

Answer 6

I see the lines are on -5 & -3 , but i don't know whats the answer ... yeah please help..

Answer 7

the graph you posted represnts an equation.

y=f(x)

i.e. you get values of y, by plugging values of x into the function.

in your specific example this is the function:

y=(x+3)(x+5)

Answer 8

in the graph you see that the red line crosses the horizontal axis in two locations.

Answer 9

one is where x=-3
and the other where x=-5

at these two points , y=0

right ?

Answer 10

OH!! I see. but why is the equation adding instead of Subtraction

Answer 11

your right y=0

Answer 12

well, look at this equation

y=(x+5)*(x+3)

at what values of x would y be 0 ?