Which set of ordered pairs represents a function? {(-3,7), (7, -3), (-7,6), (-7, -1)}
{(7, -3), (-3,-9), (-3,-8), (8,1)}
{(8,-9),(4, -8),(-4,0), (-2,-8)}
{(-2,8), (-3,-3), (1, -4), (1,9)}

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

Solve -.016x= -16. need solving this

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?