Question 17 of 32 If the vertex of a parabola is (2, -9) and another point on the curve is (5, -18),
what is the coefficient of the squared expression in the parabola's equation?
O A. -5
ОB. 5
O C. -1
O D. 1

Can someone show me the steps to solve the problem?

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

Francisco's credit card has an apr of 28.98%, calculated on the previous monthly balance. his credit card record for the last 7 months is shown in the table below francisco is trying to figure out what this all means. answer the following questions: what is the total amount that francisco has paid in interest over the 7 months? what is the total amount that francisco has made in payments over the 7 months? how much of francisco's payments have gone to paying down the principal on his account? what is francisco's new balance at the end of month 8? what will francisco be charged for interest for month 8?