Please help me with number one and use the graph on the left to do it.

Find the slope of the line y =8/9x + 1.

Which expression is equivalent to the expression shown?

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