3 years ago

F(-4) if f(x) = -X-5. help please!

Mathematics

1 answer:

marissa [1.9K]3 years ago

5 0

Answer: -1

Step-by-step explanation:

f(-4)=4-5

Since your x is negative and this problem requires -x to find y, you switch the sign to positive.

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Hello from MrBillDoesMath!

Answer:

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Discussion:

The attachment shows calculated angles in red. As a straight line has 180 degrees the missing angle at A is 180 - 72 = 108 degrees (shown in red). The missing angle at B is 180 - 144 = 36. As a triangle has 180 degrees.

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