2points
does this graph show a function? explain how you know.
o
a. yes; the graph passes the vertical line test.
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b. yes, there are no yvalues that have more than one x-value.
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c. no; there are y-values that have more than one x-value.
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d. no; the graph fails the vertical line test.

D. No,the graph fails vertical line test.

yes. we do proportions in probabilities.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x