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OpenStudy (anonymous):
which of the following is an x-intercept of the function, f(x)=x^2-25 A. -20 B. -15 C. -25 D. -5
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OpenStudy (welshfella):
x^2 - 25 = 0 solve for x
OpenStudy (welshfella):
x intercepts occur when f(x) = 0
OpenStudy (anonymous):
-5
OpenStudy (welshfella):
x^2 - 25 = 0 add 25 to both sides x^2 = 25 x = ? can you complete this?
OpenStudy (welshfella):
one of the options fit this
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OpenStudy (anonymous):
-5?
OpenStudy (welshfella):
yes beacuse -5 * -5 = 25
OpenStudy (anonymous):
yeahh I got it.. Thank you :p
OpenStudy (welshfella):
yw
OpenStudy (anonymous):
yeahh I got it.. Thank you :p
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