Answer:

Step-by-step explanation:
Given

Required
Find f(x - 4)
Substitute x - 4 for x

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Collect like terms


Answer:rational
Step-by-step explanation:
If the slope of line C is -4, the slope of line D, which is perpendicular to C, is the negative reciprocal of the slope of C: -( 1 / (-4) ), or +1/4.
Note how 1/4 is the native reciprocal of -4, and that -4 is the negative reciprocal of 1/4.
The slope of line D is 1/4.
Answer:
Original price = $ 280.66
New price = $319.11
Step-by-step explanation:
Let the original price be = x
Given 13.7% of original price resulted in 38.45 increase
That is,
13.7% of x = 38.45

New price is 38.45 more than original price.
That is ,
New price = 280.66 + 38.45 = $ 319.11