Analyze the following quadratic functions. Choose the option(s) that open up, have a vertex that is a minimum and a negative y-intercept. Select all that apply.

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!