How to know a function from a non function

F (x) = 4 (x-1) ^2-1 axis of symmetry

A white tailed deer can sprint at speeds up to 30 miles per hour. American bison can run at speeds up to 3,520 feet per minute. Which animal is faster and by how many per hour? There are 5,280 feet in one mile

A meeting is scheduled involving 12 people. suppose that each person has an 87 percent chance of arriving on time, independently of the other people involved. what is the probability that one or more of the 12 people arrives late?

A grocer wants to make a 10-pound mixture of peanuts and cashews that he can sell for $4.75 per pound. If peanuts cost $4.00 per pound and cashews cost $6.50 per pound, how many pounds of cashews should he use? 3 4 6 7

Find the range of the given data set. - 4, - 3, - 1, - 1, 0, 1

1+1-2+5-3+6-6+2x2=10 is this right or wrong

Jason wrote the mixed number 1 1/3 as the sum of three fractions. None of the fractions had a denominator of 3. How is this possible? What fractions might jason have used?

Aaron needs to hire a waiter. Waiter A is offering his services for an initial $25 in addition to $4.75 per hour. Waitress B is offering her services for an initial $30 in addition to $3.75 per hour.

A latter is placed 30 inches from the wall. It touches the wall at a height of 50 inches from the ground. The angle made by the ladder with the ground is degrees, and the length of the ladder is inches.

Which is the most accurate measurement of 1 mile?