Jan'ai was asked to determine the minimum for a function with zeros located at –1 and 5, which also has a y-intercept of (0, –25). Her work is shown.Which best describes the first error in Jan'ai's work?
Answer
A
She incorrectly determined the factors for the beginning function.
B
She incorrectly determined the a value.
C
She incorrectly transformed the equation to standard form.
D
She incorrectly determined the x-coordinate of the vertex.