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Varvara68 [4.7K]
3 years ago
5

Find f(-5) f(x) = -4x + 3

Mathematics
2 answers:
Marina CMI [18]3 years ago
4 0

For this case we have a function of the formy = f (x)

Where:

f (x) = - 4x + 3

We must find the value of the function when the variable x is -5.

Then, substituting, x = -5

f (-5) = - 4 (-5) +3

We have that by sign law- * - = +

f (-5) = 20 + 3\\f (-5) = 23

Answer:

f (-5) = 23

OLEGan [10]3 years ago
4 0

ANSWER

f( - 5)=23

EXPLANATION

The given function is

f(x)=-4x+3

To find f(-5), we substitute x=-5 to obtain;

f( - 5)=-4( - 5)+3

We multiply out to obtain:

f( - 5)=20+3

We simplify to get,

f( - 5)=23

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