Which equation has a graph that is a parabola with a vertex at (-1, - 1) ?

A. y = (x - 1) 2 + 1

B. y = (x - 1) 2 - 1

C. y = (x + 1) 2 + 1

D. y = (x + 1) 2 - 1

Question

Kendall Yates

Mathematics

4 May, 17:59

Which equation has a graph that is a parabola with a vertex at (-1, - 1) ?

A. y = (x - 1) 2 + 1

B. y = (x - 1) 2 - 1

C. y = (x + 1) 2 + 1

D. y = (x + 1) 2 - 1

+3

Answers (1)

Know the Answer?

Angelina Spears · Answer 1

The answer is y = (x+1) 2-1. The x plus one causes the whole parabola to actually shift to the left by one unit rather than to the right. The subtraction of one causes a vertical shift down by one unit, so the vertex moves from (0,0) to (-1,-1).

Which equation has a graph that is a parabola with a vertex at (-1, - 1) ?A. y = (x - 1) 2 + 1B. y = (x - 1) 2 - 1C. y = (x + 1) 2 + 1D. y = (x + 1) 2 - 1

Which equation has a graph that is a parabola with a vertex at (-1, - 1) ?

A. y = (x - 1) 2 + 1

B. y = (x - 1) 2 - 1

C. y = (x + 1) 2 + 1

D. y = (x + 1) 2 - 1