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Evaluate f (x)=5/2x-8 when x=4

Evaluate f (x)=5/2x-8 when x=4
asked 163k views
2 votes
Evaluate f (x)=5/2x-8 when x=4

asked
User Httqm
by
8.5k points

1 Answer

1 vote

Answer:

2

Explanation:

f(x) =
(5)/(2) x - 8 ← substitute x = 4 into f(x) , then

f(4) =
(5)/(2) × 4 - 8 = 5 × 2 - 8 = 10 - 8 = 2

answered
User Nick Walsh
by
8.0k points
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