Question 43 Answer and Explanation _ACT October 2014 Asia Form 70B Math Section

Question 43 Answer and Explanation _ACT October 2014 Asia Form 70B Math Section

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43. The parabola in the standard (x, y) coordinate plane below has vertex (4, -5) and y-intercept (0, 11). Which of the following could be an equation of this parabola?

A. y = (x - 4)²

B. y = (x - 4)²+ 5

C. y = (x - 4)² - 5

D. y = (x - 4)² + 11

E. y = (x - 4)² - 11

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation

When x=4, y=-5, so choose C