The minimum of a parabola is located at (–1, –3). the point (0, 1) is also on the graph. which equation can be solved to determine the a value in the function representing the parabola?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?