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h(5) =a(5) + b = 8
5a + b = 8 ...(1)
h(2) = a(2) +b = -1
2a + b = -1 ...(2)
eliminasi mencari nilai a
5a + b = 8
2a + b = -1
----------------- -
3a = 9
a = 3
subtitusi
2(3) + b = -1
b = -7
rumus fungsinya :
h(x) = ax + b
h(x) = 3x -7
mencari h(10) dgn rumus yang didapat.
h(10) = 3(10) -7
=30 -7
= 23
maap klo salah