Diketahui fungsi linear f(x) = 1/2x + 3 Tentukan nilai f(2) - f (-8)

Question

Matematika Diposting : 2018-01-23 Diupdate : 2020-05-06 Alysa090802

Pertanyaan

Diketahui fungsi linear f(x) = 1/2x + 3
Tentukan nilai f(2) - f (-8)

Answer 1

f(x) = ½x + 3
f(2) = ½(2) + 3 = 1 + 3 = 4
f(-8) = ½(-8) + 3 = -4 + 3 = -1

f(2) - f(-8) = 4 - (-1) = 4+1 = 5

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Answer 2

F(x) = 1/2x + 3

F(2) = 1/2 x 2 + 3 = 4

F(-8) = 1/2 x -8 + 3 = -1

F(2) - F(-8)
= 4 - (-1) = 5