Which linear function includes the points (2, -9) and (-1, -12)?

A. y = x − 9
Incorrect. This line does not contain the points (2, -9) and (-1, -12).

B. y = x − 11
Correct! This line includes the points (2, -9) and (-1, -12).

C. y = 3x + 13
Incorrect. This line does not contain the points (2, -9) and (-1, -12).

D. y = -3x − 5
Incorrect. This line does not contain the points (2, -9) and (-1, -12).

Which equation describes a line that passes through the point (-1, 1) and has a slope of -3?

A. y = -3 + 4
Incorrect. This line does not pass though point (-1, 1).

B. y = -3x − 4
Incorrect. This line does not pass though point (-1, 1).

C. y = -3x + 2
Incorrect. This line does not pass though point (-1, 1).

D. y = -3x − 2
Correct! This line passes through (-1, 1) and has a slope of -3.

Which linear equation represents the line that has a slope of 1 2 and passes through point P?

Please select A, B, C or D.

A. y = 1 2x + 6

B. y = 1 2x - 6

C. y = 1 2x + 4

D. y = 1 2x - 4

A. Correct! This line has a slope of 1 2 and passes through P.

B. Incorrect. This line will not pass through P.

C. Incorrect. This line will not pass through P.

D. Incorrect. This line will not pass through P.

Which equation describes a line that has a y-intercept of 6 and a slope of 2 3?

Please select A, B, C or D.

A. y = 6 + 2 3x

B. y = (6 + x) 2 3

C. y = 6x + 2 3

D. y = (6x + 1) 2 3

A. Correct! This line has a slope of 2 3 and a y-intercept of 6.

B. Incorrect. The y-intercept of the line will be 4 instead of 6.

C. Incorrect. The slope of the line is 6 and the y-intercept is 2 3.

D. Incorrect. The slope of the line is 4 and the y-intercept is 2 3.