Which set of ordered pairs represents a function?

1) {1,9), (-5,-5), (1,-8), (-9,5) }

2) { (-3,9), (3,-4), (2,9), (3,4) }

3) { (3,-3), (-7,-5), (5,-5), (-1,2)

4) { (3,6), (2,1), (-8,4), (2,0) }

What is 2a/3 + 1/5=7/6? Solve for a

What is y intercept and x intercept of f (x) = (x+3) ^2

Name the property of real numbers illustrated by the equation.

A store has 7 red shirts 15 black shirts and 13 white sshirts

Which of the following transformations is shown? A. Translation 1 unit down B. Translation 2 units down C. Translation 3 units to the right D. Reflection across the line y-axis

Choose the most correct statement given that Quadrilateral ABCD has vertices A (2, 1), B (2, 4), C (7, 4), and D (6, 1) ? 1. Quadrilateral ABCD is a parallelogram because opposite sides are parallel. 2.

The function h (t) = - 2 (t-3) ^2+23 represents the height, in feet, t seconds after a volleyball is served. Which of the following statements are correct? Select all that apply.

Convert 15.5 feet to meters.

What value of x make this proportion tire 120/165 = x/11

Suppose there's 0.9811 ml of DEET in 1 ml of insect repellent. How much DEET would be in 20 ml of the repellent? A. 19.622 ml B. 24.5275 ml C. 9.811 ml D. 1.9622 ml