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Which expression is equivalent to 1/4(8-6x+12)?

a. 7/2x
b. -13/2
c. -6x+14
d. -3/2x+5
An airplane's altitude changed -378 feet over 7 minutes. What was the mean change of altitude in feet per minute? WORK PLEASE

1 Answer

2 votes
¹/₄(8 - 6x + 12)
¹/₄(-6x + 8 + 12)
¹/₄(-6x + 20)
¹/₄(-6x) + ¹/₄(20)
-1¹/₂x + 5
The answer is D.


(-378\ feet)/(7 \min) = -54\ feet\ per\ minute
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