Find the missing length of the triangle if one side is 1.5 and the other side is 3.6

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 describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319