Question

Which of the following is the graph of y = negative StartRoot x EndRoot + 1?
On a coordinate plane, an absolute value curve curves up and to the right in quadrant 4 and starts at y = negative 1.
On a coordinate plane, an absolute value curve curves up and to the right in quadrant 4 and starts at y = 1.
On a coordinate plane, an absolute value curve opens down and to the left in quadrant 2 and starts at y = 1.
On a coordinate plane, an absolute value curve opens down and to the left in quadrant 2 and starts at y = negative 1.

Answer 1

y = -√x + 1 has domain x ≥ 0 and value at x = 0 is y = 1. As x increases √x increases, so -√x + 1 decreases, moving down and to the right into quadrant IV.

Therefore the correct choice is the second one: "curves ... to the right in quadrant 4 and starts at y = 1."