Is the relation is a function, explain. {(8, 5), (7, 4), (6, 4), (5, 5)}

Yes, it is a function.

Step-by-step explanation:

As long as there are no more than one x-values for each coordinate, then it is considered a function.

all it means is function 3

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