Which graph best represents the graph of y = -x − 2?

A.
Correct! The y–intercept is -2 and the slope is -1.

B.
Incorrect. The y-intercept is -2 but the slope should be -1.

C.
Incorrect. The graph has the correct y-intercept but the points (1, -3), (2, -4), and (3, -5) are not on the graph given.

D.
Incorrect. The y-intercept is -2 but the slope should be -1.

Which graph best represents the graph of y = 20 − 2.50x?

A.
Incorrect. It will be best to check points on the graph. According to the calculator the points (4, 10), (6, 5), (8, 0) and (10, -5) should be on the graph.

B.
Incorrect. It will be best to check points on the graph. According to the calculator the points (4, 10), (6, 5), (8, 0) and (10, -5) should be on the graph.

C.
Incorrect. It will be best to check points on the graph. According to the calculator the points (4, 10), (6, 5), (8, 0) and (10, -5) should be on the graph.

D.
Correct! This is the only graph with the points (4, 10), (6, 5), (8, 0) and (10, -5).

Which graph best represents the graph of -3x + 4y = -8?

A.
Incorrect. Something went wrong. Did you double check your points? (3, 2) and (6, 6) are on this graph. But if A was the correct choice, all answers would equal -8.

B.
Incorrect. Something went wrong. Did you double check your points? (-3, 2) and (3, -6) are on this graph. But if B was the correct choice, all answers would equal -8.

C.
Correct! y = 3 4 x − 2: y-intercept is -2 and slope of 3 4 , and the points (0,-2), (4,1) and (8,4) are on the graph.

D.
Incorrect. Did you double check your points? (0, 2) and (3, -2) are on this graph. But if D was the correct choice, all answers would equal -8.

Which graph best represents the graph of y = 5 − 2 3x²?

A.
Incorrect. This graph is close but (-3, -1) and (3, -1) are not on the graph.

B.
Incorrect. The graph should open downward.

C.
Incorrect. The graph should open downward.

D.
Correct! Matching the points in the table makes this an answer that is sure to be correct.

Which graph best represents the graph of f(x) = –x² + 6?

A.
Incorrect. This graph is close but (0, 6) is not on the graph.

B.
Correct! Matching the points in the table makes this an answer that is sure to be correct.

C.
Incorrect. The points (-2, 2), (-1, 5), (0, 6), (1, 5), and (2, 2) are not on the graph.

D.
Incorrect. The points (-2, 2), (-1, 5), (0, 6), (1, 5), and (2, 2) are not on the graph.