Suatu fungsi f(x) = -4x²+5 tuliskan rangenya jika domain {-2,-1,0,1,2,3}
Matematika
triveny
Pertanyaan
Suatu fungsi f(x) = -4x²+5 tuliskan rangenya jika domain {-2,-1,0,1,2,3}
1 Jawaban
-
1. Jawaban juliarni
f(x) = -4 x² + 5
f(-2) = -4 (-2)² + 5 = -4(4) + 5 = -16 + 5 = -11
f(-1) = -4 (-1)² + 5 = -4(1) + 5 = -4 + 5 = 1
f(0) = -4 (0)² + 5 = -4(0) + 5 = 0 + 5 = 5
f(1) = -4 (1)² + 5 = -4(1) + 5 = -4 + 5 = 1
f(2) = -4 (2)² + 5 = -4(4) + 5 = -16 + 5 = -11
f(3) = -4 (3)² + 5 = -4(9) + 5 = -36 + 5 = -31
range = {-31, -11, 1, 5 }