Equations of Parallel and Perpendicular Lines — Unit test Answers

The depth of snow after n hours of a snowstorm is represented by the function f(n + 1) = f(n) + 0.8 where f(0) = 2.5. Which statement describes the sequence of numbers generated by the function?

What is the equation of the line in slope-intercept form that is perpendicular to the line y = x – 2 and passes through the point (–12, 10)?

The function f(x) is shown on the graph.

What is the inverse of the function f(x) = x +3?

A coordinate plane with 2 lines drawn. The first line is labeled f(x) and passes through the points (0, negative 2) and (1, 1). The second line is labeled g(x) and passes through the points (negative 4, 0) and (0, 2). The lines intersect at about (2.5, 3.2)

Consider the function represented by the equation x – y = 3. What is the equation written in function notation, with x as the independent variable?

Question text not available

Which graph represents a function?

Mrs. Jackson gives the table below to her students.

The function f(x) is shown on the graph.

What is the slope of a line that is perpendicular to the line x = –3?

On a coordinate plane, a red line, labeled g of x, begins on a negative slope, crosses the x-axis at (negative 2, 0), the y-axis at (0, negative 2), and crosses the x-axis on a positive slope at (2, 0). A straight blue line with a negative slope, labeled f of x, crosses the y-axis at (0, 2) and the x-axis at (2, 0).

The table shows ordered pairs of the function y = 16 + 0.5x .

To graph the equation 2x + 5y = 10, Zeplyn draws a line through the points (5, 0) and (0, 2). What is the slope of the line represented by 2x + 5y = 10?

The table represents a linear function.