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Use the graph of the parabola to fill in the table .

Use the graph of the parabola to fill in the table .-example-1
User Gaurav Parashar
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(a) We see that the parabola opens upward.

(b) The axis of symmetry is the axis that divides the parabola into two equal parts. We see that the axis of symmetry is a vertical line with x = 1.

(c) The vertex of a parabola is a point at which the parabola makes its sharpest turn. We see that the vertex of the parabola is the point (1, -4).

(d) The intercepts of a curve are the points where the curve intercepts the coordinate axis. We see that the intercepts of the parabola are:

• x-intercept (when y = 0): ,(-1, 0), (3, 0).

,

• y-intercept (when x = 0): ,(0, -3).

Answers

(a) upward

(b) x = 1

(c) (1, -4)

(d)

• x-intercept: (-1, 0), (3, 0)

,

• y-intercept: (0, -3)

User Jack Feng
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