4. determine the following difference. (2x² + 3x - 10) - (x² - x + 111)  explain a. x² + 4x -121 b. 2x - 121 c. x² + 2x +121 d. x² + 2x -121

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?

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?