Question

The function g(x) = x2 – 10x + 24 is graphed on a coordinate plane. Where will the function cross the x-axis?

(–6, 0) and (–4, 0)
(–2, 0) and (–12, 0)
(4, 0) and (6, 0)
(12, 0) and (2, 0)

Answer 1

@AlexandervonHumboldt2 @triciaal @Michele_Laino @Starbucks

Answer 2

C

Answer 3

Function will cross x axis when y = 0.
Put y = 0 and find x

Answer 4

guess C

Answer 5

@AlexandervonHumboldt2 Your Unsure

Answer 6

at point x, such that:
\[x ^{2}-10x+24=0\]

Answer 7

yeah i'm bad with functions

Answer 8

y = x^2 - 10x + 24

sum of factors = -10
product of factors = 24

a+b = -10
a*b = 24

find a and b

Answer 9

are we using -6 and -4 to get -10 when added and +24 when multiplied?

Answer 10

Sorry I think x=6, and x=4

Answer 11

@Michele_Laino correct

Answer 12

Answer Choice

Answer 13

because I haveto applid this formual:
\[x=\frac{ -b \pm \sqrt{b ^{2}-4*a*c} }{ 2a }\]

Answer 14

oops because I have applied...

Answer 15

@Michele_Laino is correct.

Answer 16

thanks! @triciaal

Answer 17

A B C Or D

Answer 18

i just answered some more questions for this poster. my point is to get the correct factors to use to set the function = 0

Answer 19

thanks! @sangya21

Answer 20

@Michele_Laino A B C Or D