diketahui rumus f(x-2)= 4×-3 nilai f(-1) adalah

f(-1)
= f(1-2) = 4(1) - 3
= f(1) = 4 - 3
= f(1) = 1.

≡ penyelesaian :

f( x - 2 ) = 4x - 3

( x - 2 ) = -1
x = -1 + 2
x = 1

f(-1) = 4x - 3
f(-1) = 4(1) - 3
f(-1) = 4 - 3
f(-1) = 1

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