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OpenStudy (anonymous):
What is the y-intercept of the quadratic function below?
f(x) = 24x2 + 4x - 48
A. 6
B. -48
C. 0
D. 2
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OpenStudy (marigirl):
its usually the constant (the number at the end), so in this case -48
OpenStudy (anonymous):
can you help with another??
OpenStudy (anonymous):
Please write your question here
OpenStudy (anonymous):
Identify the x-intercepts of the function below.
f(x) = x2 + 9x + 20
A. 4 and 5
B. -4 and 5
C. -4 and -5
D. 0 and 20
OpenStudy (anonymous):
we have y = x^2 + 9x + 20 to find x -intercept put y =0 so we will get
x^2 + 9x + 20 =0 then use quadratic formula to find values of x
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OpenStudy (anonymous):
To find x intercept plug y = 0 or f ( x) = 0 into given equation can you try ?
OpenStudy (anonymous):
?? D?
OpenStudy (anonymous):
no please check it
OpenStudy (anonymous):
A!
OpenStudy (anonymous):
Please check again ..
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OpenStudy (anonymous):
B
OpenStudy (anonymous):
nope .. :|
OpenStudy (anonymous):
C!
OpenStudy (anonymous):
Excellent .. :)
OpenStudy (anonymous):
I got A, B, and C confused!
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OpenStudy (anonymous):
lol
OpenStudy (pinksapphire):
For the equation f(x) = 24x2 + 4x - 48 the right answer is C.0.
try it on a scientific calculator and see where the line crosses the y-intercept.
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