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3 years ago

If x=4x+5 what is the value of f(-3)

Mathematics

2 answers:

kolbaska11 [484]3 years ago

6 0

Step-by-step explanation:

$f(x) = 4x + 5 \\ f( - 3) = 4 \times( - 3 )+ 5 \\ f( - 3) = - 12 + 5 \\ f( - 3) = - 7$

irina1246 [14]3 years ago

5 0

You plug in -3 for x for 4(-3)+5 =-7

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