On a number line, what number is between 1/4 and 1/5?

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

Ineed i been stuck on this question since yesterday

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42