Week 2
Evaluate the function. Find f(-1) when f(x) = x^2 - 2x - 7
-4
Evaluate the function. Find f(-3) when f(x) = 2x^2 + 3x + 5
14
Evaluate the function. Find f(k) when f(x) = 3x^2 + 4x + 5
3k^2 + 4k + 5
Evaluate the function. Find f(k - 1) when f(x) = 4x^2 - 3x + 4
4k^2 - 11k + 11
Function
Decide whether the relation defines a function.
Not a function
Decide whether the relation defines a function.
Function
Decide whether the relation defines a function. Annual New Telemarketing Companies
(-∞, -3) ∪ (-3, ∞)
Determine the intervals of the domain over which the function is continuous.
Decide whether the relation defines a function. y^2 = 5x
Not a function
Decide whether the relation defines a function. {(-5, 1), (-3, -6), (3, -3), (3, 5)}
Not a function
2
The graph of y = f(x) is given. Use the graph to find the function value. Find f(-2).
0
The graph of y = f(x) is given. Use the graph to find the function value. Find f(-3).
Evaluate the function. Find g(a + 1) when g(x) = 1 x + 5. 5
a+26 5
Give the domain and range of the relation. xy = 8
domain: (-∞, 0) ∪ (0, ∞); range: (-∞, 0) ∪ (0, ∞)
Give the domain and range of the relation. y = -7 x-6
domain: (-∞, 6) ∪ (6, ∞); range: (-∞, 0) ∪ (0, ∞)
Give the domain and range of the relation. y = 3x^7
domain: (-∞, ∞); range: (-∞, ∞)
Give the domain and range of the relation. y = square root of 4x-5
domain: |5 , ∞) ; 4 range: (-∞, ∞)
Increasing (-∞, 4]; Decreasing [4, ∞)
Determine the intervals of the domain for which the function is increasing, decreasing, and constant.
Increasing [0, ∞); Decreasing (-∞, 0]
Determine the intervals of the domain for which the function is increasing, decreasing, and constant.
Increasing for all reals; Decreasing never
Determine the intervals of the domain for which the function is increasing, decreasing, and constant.
(-∞, ∞)
Determine the intervals of the domain over which the function is continuous.
[-3, ∞)
Determine the intervals of the domain over which the function is continuous.
7
Evaluate the function. Find f(12)
Decide whether the relation defines a function. y = 5x - 2
Function
Decide whether the relation defines a function. y = x^2
Function
Decide whether the relation defines a function. {(-3, -4), (-1, 4), (4, -7), (7, 4)}
Function
Decide whether the relation defines a function. y= 5 x-1
Function
domain: [-3, 0]; range: [-5, -1]
Give the domain and range of the relation.
domain: [0, ∞); range: [3, ∞)
Give the domain and range of the relation.
domain: [1, ∞); range: (-∞, ∞)
Give the domain and range of the relation.
domain: {4, 7, 12}; range: {5, 8, 13}
Give the domain and range of the relation.
range: (-∞, ∞); domain: (-∞, ∞)
Give the domain and range of the relation.
Give the domain and range of the relation. y = (x + 4)^2 - 4
domain: (-∞, ∞); range: [-4, ∞)
Give the domain and range of the relation. {(1, 9), (-1, -9), (-7, -5), (6, -9)}
domain: {-7, -1, 1, 6}; range: {-9, -5, 9}
