Question

42. The graph of parabola opens downwards, if_____ (ii) a = 0 (iii) a < 0 (ivt a > 0 ​

Answer 1

Answer:

a < 0

Step-by-step explanation:

Step 1:

There is an easy way to tell whether the graph of a quadratic function opens upward or downward: if the leading coefficient is greater than zero, the parabola opens upward, and if the leading coefficient is less than zero, the parabola opens downward.

Step 2:

As it is mentioned in the question that the graph of parabola opens downwards,

So a < 0