Question

I still do not understand how to do this: Find the zeros of the function: y=(x-2)(x+9)... Help....... :/

Answer 1

well the thing is someone already factor a quadratic for you.

(x-2)(x+9)=0

results in
x-2=0 and x+9=0

solve each individually.

x=2 and x=-9

Answer 2

so the -2 and the 9 just switch signs?

Answer 3

yes. I just solve for them individuallay
x-2=0 add 2 to both sides to isolate the x
x+9=0 subtract 9 to both sides to isolate the x

------- here is the graph
https://www.google.com/search?q=(x-2)(x%2B9)&rlz=1C1CHFX_enUS470US470&aq=f&sugexp=chrome,mod=11&sourceid=chrome&ie=UTF-8

Notice it intercepts the x axis the points i solved for

Answer 4

oh yes okay i see that

Answer 5

yay :D

Answer 6

Haha Thank you (:

Answer 7

de nada