Question

Help please :)

Answer 1

x^2 has positive co-efficient or negative ?

Answer 2

negative?

Answer 3

yes, negative

Answer 4

so the parabola would open upward or downward?

Answer 5

downward

Answer 6

correct , now find x-intercept, can u ?

Answer 7

Not sure how

Answer 8

put f(x)=0
what u get ?

Answer 9

9?

Answer 10

no thats not right .

Answer 11

0=-(x-3)^2
x-3=0
x=?

Answer 12

not sure

Answer 13

x-3=0
add 3 to both sides.

Answer 14

its c then!

Answer 15

yes, but do u know why ?

Answer 16

cause i looked at my notes and i had it written down already
>.>
<.<
^_^

Answer 17

ok, here u get x-intercept = 3
so, your graph will 1)open downwards
2) will cut x axis at 3
and only graph c) satisfies it.

Answer 18

Yeah.. i was gonna say that

Answer 19

:p