4. let x = {1,2,3,4} and y = {5,6,7,8,9}

given two functions:
f= {(1,7), (2,5), (3,6), (4,7)} & g= {(1,5), (2,6), (1,8), (2,9), (3,7)}

a) is fa function? if yes, what is the domain and range?

b) is g a function? if yes, what is the domain and range?

c) what is f(2)?

d) if f(x) = 7, what is the value of x?

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? 1. define a variable for the situation. 2. write an inequality that represents the situation. 3.solve the inequality to find out how many months he needs to keep the website for site a to be less expensive than site b. 4. using words, describe how many months he needs to keep the website for site a to be less expensive than site b.

Tiffany drives 285,120 feet before lunch and 628,320 feet after lunch. about how many kilometers does she drive all together

Your company withheld $4,463 from your paycheck for taxes. you received a $713 tax refund. select the best answer round to the nearest 100 to estimate how much you paid in taxes.