Answer:
We need a little more information. We need both y and x values. You only included one. Sorry!
Step-by-step explanation:
Use your knowledge of trig for this. you know the opposite length, 35, and you need to find the hypotenuse. the trig function to use would be SIN.

try to think about which trig functions to use to find the answers for cable 2. if you need more help leave a message.
Any equation that has a slope of 1/2. The equation has to be equivalent to y=1/2x-3 so, you can use the equation y=1/2x+4 (for example)