What is the circumference of a semi circle if the radius is 1.5

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

Lindsay used two points, (x, y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15