4. find the distance between a point (–3, 4) and a vertical line at x = 4.

Step-by-step explanation:

Let the point A(a, b) and the line x = k. The distance between the point A and the line k is equal |k - a|.

We have A(-3, 4) and x = 4. Substitute:

d = |4 - (-3)| = |4 + 3| = |7| = 7

12m

step-by-step explanation:

square root means have of a number so have of 3 is 1.5 then multiply it by 8 and you get your answer!