Use the horizontal line test to determine whether the function is one-to-one. -5 -4 -3 -2 -1 1 2 3 4 5 -20 -16 -12 -8 -4 4 8 12 16 20 x y A coordinate system has a horizontal x-axis labeled from negative 5 to 5 in increments of 0.5 and a vertical y-axis labeled from negative 20 to 20 in increments of 2. A parabola that opens upward has vertex (0.3, negative 4) and passes through the points (negative 0.7, negative 0.5) and (1.3, 0). All coordinates are approximate. . . . Question content area right Part 1 Not one-to-one One-to-one