Penjelasan dengan langkah-langkah:
{x| -1 ≤ x ≤ 4 ,xER} = -1, 0, 1, 2, 3, 4
f(x) = x² - 2x - 3
.
f(-1) = (-1)² - 2(-1) - 3 = 0
f(0) = 0² - 2(0) - 3 = -3
f(1) = 1² - 2(1) - 3 = -4
f(2) = 2² - 2(2) - 3 = -3
f(3) = 3² - 2(3) - 3 = 0
f(4) = 4² - 2(4) - 3 = 5
Range = -4, -3, 0, 5 = {y| -4 ≤ y ≤ 5, yER}
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Penjelasan dengan langkah-langkah:
{x| -1 ≤ x ≤ 4 ,xER} = -1, 0, 1, 2, 3, 4
f(x) = x² - 2x - 3
.
f(-1) = (-1)² - 2(-1) - 3 = 0
f(0) = 0² - 2(0) - 3 = -3
f(1) = 1² - 2(1) - 3 = -4
f(2) = 2² - 2(2) - 3 = -3
f(3) = 3² - 2(3) - 3 = 0
f(4) = 4² - 2(4) - 3 = 5
.
Range = -4, -3, 0, 5 = {y| -4 ≤ y ≤ 5, yER}