What is the equation of the blue line

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.