What are the vertex and x-intercepts of the graph of the function below? y = x2 - 6x-7
A. Vertex: (3.-16); Intercepts: x = -1,7
B. Vertex: (3,-16); Intercepts: x = 1, -7
C. Vertex: (3,-2): Intercepts: x= 1, -7
D. Vertex: (3,-2); Intercepts: x = -1,7

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.

Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5: 2: 3. how many cups of pear juice should she use to make 20 cups of punch?