What is the equation of the graph below

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?

If f(x) = 4 - x2 and g(x) = 6x, which expression is equivalent to (g-f)(3)? 06-3-(4 + 3)2 06-3-(4-33 6(3) - 4 +32 6(3) -4 -32

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if