Someone please help!

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

How many of the 250 grandparents in the population would you expect to prefer online shopping with merchant a? merchant a: 4 merchant b: 6 merchant c: 2 merchant d: 3 other: 5 none: 5 answer choices: a.about 4 b.about 8 c.about 40 d.about 21

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept