I have two questions, please try to answer both of them! 1- What is the equation of the quadratic graph with a focus of (5, −1) and a directrix of y = 1?
Answer choices:
A. f(x) = − 1/4 (x − 5)2 + 1
B. f(x) = 1/4 (x − 5)2 + 1
C. f(x) = − 1/4 (x − 5)2
D. f(x) = 1/4 (x − 5)2

2- Which of the following is a solution of x2 + 2x + 4?
Answer choices:
A. −2 + 2i√3
B. 2 + 2i√3
C. 1 − i√3
D. −1 + i√3

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Factor k2 - 17k + 16. a.(k - 2)(k - 8) b.(k - 1)(k + 16) c.(k - 1)(k - 16)