g(-4) just means that you are supposed to plug in "-4" for "x" in the function g(x). So since g(x) = -2x - 1 then g(-4) = -2(-4) - 1 = 8 - 1 = 7
Melika S.
asked • 08/25/20Function notation
Given g(x)=-2x- 1,find g(-4)
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2 Answers By Expert Tutors
Karissa F. answered • 08/25/20
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g(-4) means find the value of the function g when x = -4
plug in -4 for x in the given equation
g(-4) = -2(-4) - 1
g(-4) = 8 - 1
g(-4) = 7
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