How do I do these?

explanation below

Step-by-step explanation:

line is parallel

so you know that the slope will be the same as the equation provided, so for the first question, the slope is -6

line is perpendicular

the slope will be the negative reciprocal (imagine the number as a fraction if not already, then flip it upside down or switch the top and bottom) and add a negative sign. For the second one, the slope will be -3/2

to find the y intercept, you will add or subtract a number to the x value to get that value to equal 0, then you will multiply that number (it will be negative if you subtracted) to the slope, and that will be your y value. So your y intercept that you found should look like this (0,y) with the y value being whatever you just found.

with the format of slope intercept form y=mx+b you can now substitue your values in with m being the slope and b being the y value of your y intercept.  

let me know if you have any other questions :))

step-by-step explanation:

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its 50 miles away from the starting point