Choose the correct verbal expression for the algebraic expression 2(y squared - 9)+4

The table represents a linear function. what is the slope of the function? –6 –4 4 6

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?

The students in a class were asked how many siblings they have. the data obtained is represented in the dot plot. the number of students who have no siblings is . the number of students who have three or more siblings is .