HE Which line passes through the origin?

y = 3
y = x − 3
y = −3x
y = 2x + 1

Which line is horizontal?

y = 2
y = 2x
y = −2x
y = x

Which of the following lines goes downwards from left to right?

y = 2x + 5
y = 2x − 6
y = 2x
y = −2x + 20

What is the equation of a line with a y-intercept at (0, 6) and a slope of 3?

y = 3x + 6
y = 6x + 3
y = 3x − 6
y = −6x − 3