Question: what is the formula to find the function?
Answer: Function Formulas. Function defines the relation between the input and the output. Function Formulas are used to calculate x-intercept, y-intercept and slope in any function. ... The vertex of a quadratic function is calculated by rearranging the equation to its general form, f(x) = a(x – h)2 + k; where (h,k) is the vertex ...