the scatter plot shows the population p of a town t years after 20000 witch is he best liner equation to modle the towns population from 2000 to 2010

Is the following relation a function? x y 1 4 −1 −2 3 10 5 16 yes no

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

Using elimination, what is -4x+2y=-12 4x+8y=-24