How do you determine if the graph opens up or opens down?

Question

asked Aug 1, 2021 54.7k views

2 Answers

Geca · Answer 1 · 2021-08-07T22:04:41+0000

Answer:

see below

Explanation:

Assuming this is for a parabola

The coefficient of the x^2 term

If it is positive it opens upward

+ it makes a smile

If it is negative it opens down

- it frowns