Evaluating Functions
If f(x) = -9x+6 find f(11)
f(11) = -93
What is the domain of this function?
-infinity, infinity
Given the graph of the line represented by the equation f(x) = −2x + b, if b is increased by 4 units, the graph of the new line would be shifted 4 units
1) right
2) up
3) left
4) down
2) up
(3n+2)(n+3)
3n2+11n+6
x2+7x+6
(x+1)(x+6)
f(x) = (3x+4)/2, then f(8) is
f(8) = 14
What is the range of this function?
(-2, 2]
If the original function f(x) = 2x 2 − 1 is shifted to the left 3 units, which expression would represent the new f(x)?
1) 2(x − 3)2 − 1
2) 2(x + 3)2 − 1
3) 2x2+ 2
4) 2x2− 4
2) 2(x + 3)2 − 1
(n-1)(2n-2)
2n2-4n+2
x2-8x-9
(x-9)(x+1)
Given f(x) = -3x2+10, what is the value of f(-2)?
f(-2) = -2
What is the domain of this function.
(-infinity, 4)
f(x) = (x-4)2 - 3
(3p-3)(p-1)
3p2-6p+3
m2+12m+27
(m+9)(m+3)
A function K(x) = 2x2-5x+3. The value of K(-3) is
K(-3) = 36
What is the range of this function?
(-5,5)
Which function represents the graph of w(x) = |x| shifted 2 units to the right?
1) g(x) = |x + 2|
2) r(x) = |x| − 2
3) q(x) = |x| + 2
4) h(x) = |x − 2|
4) h(x) = |x − 2|
(5x-2)(5x-8)
25x2-50x+16
x2-6x-27
(x+3)(x-9)
Given f(x) = 3x-5, which statement is true?
f(0) = 0
f(4)=3
f(3)=4
f(3) = 4
What is the domain and range of this function?
Domain: (-4, infinity)
Range: (-infinity, 1)
When the function f(x) = x2 is multiplied by the value a, where a > 1, the graph of the new function, g(x) = ax2
1) opens upward and is wider
2) opens upward and is narrower
3) opens downward and is wider
4) opens downward and is narrower
2) opens upward and is narrower
(2x+3)(2x-3)
4x2-9
p2-4p-45
(p+5)(p-9)