Special Linear Relationships — Unit test Answers

A direct variation function contains the points (–9, –3) and (–12, –4). Which equation represents the function?

The table represents a linear function.

The table represents a linear equation.

Line MN passes through points M(4, 3) and N(7, 12). If the equation of the line is written in slope-intercept form, y = mx + b, what is the value of b?

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?

Which table represents a linear function?

What is the constant of variation, k, of the line y=kx through (3,18) and (5,30)?

A line is drawn through (–4, 3) and (4, 3). Which describes whether or not the line represents a direct variation?

Mrs. Jackson gives the table below to her students.

A coordinate plane with a line passing through points at (0, negative 2) and (4, negative 1).

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?

A line that passes through the points (–4, 10) and (–1, 5) can be represented by the equation y = (x – 2). Which equations also represent this line? Select three options.y = x – 2y = x + 3y = –5x + 103x + 15y = 305x + 3y = 10

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)

A coordinate plane with a line passing through (negative 4, 3), (0, 1), and (4, negative 1).

The table represents a linear function.