6. What quadratic equation would have (2,9) as its vertex?
A) y = 5(x + 2)² + 9
C) y = 3(x − 2)? + 9
B) y = 17(x – 2) – 9
D) y = 48(x - 2)² – 9

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.