Is the relation a function?

why or why not?

(-8,-,,,6)

a. yes; only one range value exists for each domain value

b. no; the relation passes the vertical-line test.

c. yes; two range values exist for domain value -2.

d. no; two rang values exist for domain value -2.

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11