Which equation defines the graph?
Tip: You may be asked to determine a graph for a given equation, or you may be given a graph and asked for the equation that defines the graph.
Answer Choices
- (A) y = (5/2)x - 1
- (B) y = 2x + 2
- (C) y = -x + 5
- (D) y = (⅖)x - 1
- (E) y = -3x - 5
Answer
- Answer: (D) y = (⅖)x - 1
- Using the equation y = mx + b, and substituting in (⅖) for the slope (m) and -1 for the y-intercept (b), you get y = (⅖)x - 1
