Question 9 • CMS 2026-2027 NC Math 1 CREDIT RECOVERY
Which graph represents a function?
Answer
A
Image with description A coordinate plane with an S-shaped curve. The x-axis is labeled from negative 5 to 5 in increments of 1 and the y-axis is labeled from negative 5 to 5 in increments of 1. The curve extends from the upper-left area of the plane with an arrow near negative 3 comma 5 pointing upward to the left. The curve descends with a decreasing negative slope through the center of the plane, passing through approximately 0 comma 0 at the origin, then continues to descend with an increasing negative slope into the lower-right area of the plane, ending with an arrow near 3 comma negative 5 pointing downward to the right.
B
Image with description A coordinate plane with a straight line of negative slope. The x-axis is labeled from negative 5 to 5 in increments of 1 and the y-axis is labeled from negative 5 to 5 in increments of 1. The line extends from the upper-left area of the plane near negative 4 comma 4, passing through the origin area, and continues to the lower-right, ending near the point 0 comma negative 2. The line has a steep negative slope.
C
Image with description A coordinate plane with two parallel straight lines of positive slope. The x-axis is labeled from negative 5 to 5 in increments of 1 and the y-axis is labeled from negative 5 to 5 in increments of 1. The first line extends from the lower-left area of the plane near negative 3 comma negative 5 to the upper-right area near 0 comma 4. The second line extends from the lower-left area near negative 1 comma negative 5 to the upper-right area near 2 comma 4. Both lines have the same steep positive slope and are spaced approximately 2 units apart horizontally.
D
Image with description A coordinate plane with a sideways parabola opening to the right. The x-axis is labeled from negative 5 to 5 in increments of 1 and the y-axis is labeled from negative 5 to 5 in increments of 1. The curve has its vertex at approximately negative 1 comma 0 on the x-axis. The upper arm of the curve extends upward and to the right, ending near the point 3 comma 3. The lower arm of the curve extends downward and to the right, ending near the point 3 comma negative 3.