REGENTS-ALGEBRA Linear Equations & Functions 3

Question 1

Which of the following is NOT a function?

Accepted Answer

{(1,2),(1,3),(2,4)}

Answer

{(1,2),(2,3),(3,4)}

Answer

{(1,2),(2,2),(3,2)}

Answer

{(1,1),(2,2),(3,3)}

Question 2

What is the domain of the function f(x) = 2x + 1 if the input values are {0, 1, 2, 3}?

Accepted Answer

{0, 1, 2, 3}

Answer

{1, 3, 5, 7}

Answer

{0, 2, 4, 6}

Answer

{1, 2, 3, 4}

Question 3

What is the range of f(x) = 2x + 1 for the domain {0, 1, 2, 3}?

Accepted Answer

{1, 3, 5, 7}

Answer

{0, 1, 2, 3}

Answer

{2, 4, 6, 8}

Answer

{3, 5, 7, 9}

Question 4

A taxi charges a flat fee of $3 plus $2 per mile. Which function represents the total cost C for m miles?

Accepted Answer

C(m) = 2m + 3

Answer

C(m) = 3m + 2

Answer

C(m) = 2m - 3

Answer

C(m) = 3m - 2

Question 5

Which graph represents a function with a negative slope and positive y-intercept?

Accepted Answer

A line falling from left to right that crosses the y-axis above the origin

Answer

A line rising from left to right that crosses the y-axis above the origin

Answer

A line falling from left to right that crosses the y-axis below the origin

Answer

A vertical line crossing the x-axis at 2

Question 6

If the equation of a line is 2y = 6x - 10, what is the slope of the line?

Accepted Answer

3

Answer

6

Answer

-5

Answer

2

Question 7

A linear function has f(0) = 4 and f(2) = 10. What is f(5)?

Accepted Answer

19

Answer

16

Answer

22

Answer

25