Which of the following describes a rigid transformation?
a. reflecting the figure across the y-axis
b. translating the figure four units up
c. enlarging a figure by a scale of two
d. rotating a figure 180 degrees

Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 is he correct? explain why or why not?

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.