Description
x2 + 2x | if x ≤ −1 | |
x | if −1 < x ≤ 1 | |
−1 | if x > 1 |
f(−4) | = | |||||
f
| = | |||||
f(−1) | = | |||||
f(0) | = | |||||
f(45) | = |
x2 | if x < 0 | |
x + 4 | if x ≥ 0 |
f(−2) | = | |
f(−1) | = | |
f(0) | = | |
f(1) | = | |
f(2) | = |
f(x) = 5x2 + 4x − 10
f(
| = | |||
f(x + 1) | = | |||
f(−x) | = |
Explanation & Answer
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Question #1
f(x) =x2 + 2x
f(-4) =(-4)^2 + 2(-4)= 8
f(x) =x2 + 2x
f(-3/2)= (-3/2)^2 + 2(-3/2) = (9/2) -(6/2)= -3/4
f(x) =x2 + 2x
f(-1) =(-1)2 + 2(-1) = -1
f(x) =x
f(0) = (0)^2=0
f(x) = -1
f(45)= -1
Question#2
f(x) = x^2f(-2) = (-2)^2 =4
f(-1) = (-1)^2 =1
f(x) = x+4
f(0) = 0+4= 4
f(1) = 1+4=5
f(2) = 2+4=6
Question#3
f(x) = 5x2 + 4x − 10
f(2) = 5(2)2 + 4(2) − 10= 18
f(x+1) = 5(x+1)2 + 4(x+1) − 10= 5(X^2 +1 +2x) + 4x+4-10
=5X^2 +5 +10x + 4x+4-10 = 5x^2 +14x-1
f(-x) = 5(-x)2 + 4(-x) − 10=5x2 -4x − 10
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