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Science & Mathematics by Anonymous 2018-06-01 14:05:10
Social Science
What is the zero of the function of f(x) = 2.4x + 15?
7 answers
A. -6.25 B. -0.16 C. 6.25 D. 15 E. 17.4
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Anonymous
A. -6.25
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Anonymous
0 = 2.4x + 15 -15 = 2.4x -15 / 2.4 = x ---> -150/24 = -6 6/24 = -6 1/4 = -6.25. A).
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Anonymous
Let f(x) = 0 Hence 2.4x + 15 = 0 2.4x = -15 x = -15/2.4 x = -6.25
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Anonymous
It has to be negative so it is either A or B. But 2.4 x 0.16 is no where near 15, so the answer must be A.
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Anonymous
A. -6.25
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Anonymous
A
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Anonymous
2.4x + 15 = 0 x = -15/(24/10) = -150/24 = -25/4 = -6 1/4 = -6.25 A
