Sarah earned 5 points for every 7 books she read. So if she read 1 book she would have earned ____ of a point.
1 answer:
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Answer:
C
Step-by-step explanation:
To determine which point lies on the graph, substitute the x-coordinate into f(x) and if the value is equal to the y-coordinate then the point is on the graph
A (15, 1)
f(15) = 3 × ≠ 1 ← not on graph
B (0, 15)
f(0) = 3 × = 3 × 1 = 3 ≠ 15 ← not on graph
C (1, 15)
f(1) = 3 × = 3 × 5 = 15 ← lies on graph
D (0, 0)
f(0) = 3 × = 3 × 1 = 3 ≠ 0 ← not on graph