Which of the following parabolas opens down? A. Directrix: y = 1; focus: (2, 4)
B. Directrix: y = -1; focus: (-2,-4)
O C. Directrix: y = -1; focus: (-2,4)
D. Directrix: y = 1; focus: (-2, 4)

the answer is 5/3x+7/5y+7

3.76%

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10