Unit Test — Unit test Answers

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.

Tracie rides the bus home from school each day. The graph represents her distance from home relative to the number of minutes since the bus left the school.

Which table represents a linear function?

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

The table represents a linear function.

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

At a glance, Kendra believes that the function represented on the graph is linear.

Raphael graphed the functions g(x)=x+2 and f(x)=x−1. How many units below the y-intercept of g(x) is the y-intercept of f(x)?

Which table represents a linear function?

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)

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

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

Timmy writes the equation f(x) = x – 1. He then doubles both of the terms on the right side to create the equation g(x) = x – 2. How does the graph of g(x) compare to the graph of f(x)?