Pls help me pls pease I really need help with it

In what form is the following linear equation written y=9x+2

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?