What is a key property of the quadratic parent function?

Question

Which of the following is a key property of the quadratic parent function?

(a) Its vertex is in quadrant III

(b) It is not a parabola

(c) It is not a function

(d) It is in quadrants I and II

Answer 1

Step 1:

The general form of quadratic function is .

Parent function of the quadratic function is given by .

Above parent function is a parabola.

Graph of the parabola:

Above parabola is in quadrants I and II.

Hence option (d) is correct.

Solution:

Option (d) is key property of  quadratic parent function.

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