SOLUTION: If a line has a slope of 2 and passes through the points (1,k) and (-2,1), what is the value of k? Please show all work, so I can understand. Thankyou!

Question 415364: If a line has a slope of 2 and passes through the points (1,k) and (-2,1), what is the value of k? Please show all work, so I can understand. Thankyou!
Found 2 solutions by solver91311, rfer:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Use the slope formula:

where and are the coordinates of the given points.

So substitute the values you were given:

Solve for

John

My calculator said it, I believe it, that settles it

Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
plot point (-2,1)
plot next point one right two up from first point.
You can continue one right and two up from this point
and so on.
You can also draw a line conecting these points to see where the line intercets x=1
The point is (1,7)

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