Intro to Linear Functions Review

Front

Which of the following relations is a function? Options: (2, 3), (4, 5), (2, 6), (7, 8), (1, 2), (2, 3), (3, 4), (4, 5), (0, 1), (0, 2), (0, 3), (−1, 2), (−1, 2), (3, 5), (4, 6)

Back

(1, 2), (2, 3), (3, 4), (4, 5)

Front

Find the slope of the line passing through the points (−2, 5) and (4, 7).

Back

1/3

Front

The relation is given by the set of points: (−3, 2), (0, 4), (2, −1), (5, 3). What is the domain?

Back

−3, 0, 2, 5

Front

Write an algebraic expression for: "three times a number decreased by 7."

Back

3x − 7

Front

A taxi company charges $4 to enter the cab and $2 for every mile traveled. Which function represents the total cost C after traveling m miles?

Back

C(m) = 2m + 4

Front

At a car wash, the total cost depends on how many cars are washed. Which is the dependent variable?

Back

Total cost

Front

At a car wash, the total cost depends on how many cars are washed. Which is the independent variable?

Back

Number of cars washed

Front

If a vertical line intersects a graph in more than one point, the relation:

Back

Is not a function

Front

Find the slope of the line given by the equation \(3x + 2y = 6\).

Back

−3/2

Front

In the equation y = 5x - 3, which symbol represents the dependent variable?

Back

y