What is the equation of the quadratic graph with a focus of (4, 3) and a directix of y = 13?

a. f(x) = −one twentieth (x − 4)2 + 10

b. f(x) = −one twentieth (x − 4)2 + 8

c. f(x) = one twentieth (x − 4)2 + 10

d. f(x) = one twentieth (x + 4)2 + 8

What is the equation of the quadratic graph with a focus of (4, 3) and a directix of y = 13?

a. f(x) = −one twentieth (x − 4)2 + 10

b. f(x) = −one twentieth (x − 4)2 + 8

c. f(x) = one twentieth (x − 4)2 + 10

d. f(x) = one twentieth (x + 4)2 + 8