Question

MEDAL AND FAN
What is the graph of the function f(x) = the quantity x squared minus 9x plus 20 over the quantity x minus 4

Answer 1

so we have f(x) = (x^2-9x+20)/(x-4)

is this what we're looking at

Answer 2

yes

Answer 3

x^2-9x+20 can be factorised
any ideas?

Answer 4

(x-5) (x+4)

Answer 5

thats close

its (x-5)(x-4)

so now what happens when we divide this by x-4?

Answer 6

idk cancel

Answer 7

i know that graph will have a hole

Answer 8

yes the x-4 top an bottom will cancel leaving f(x) = x-5