I haven't done this in so long. I forgot how. Please help!

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

Give me the equations of two lines that have the same slope but are not parallel.

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