The set of ordered pairs below is a relation. {(1,5), (0, 2), (-1, -1), (-2, -4)}
What is the range of the relation?

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

Given that sin∅ = 1/4, 0 < ∅ < π/2, what is the exact value of cos∅? a. (√4)/4 b. (√15)/4 c. (4π)/2 d. (4√2)/4

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?