Math
posted by Jessica on .
1. Write the equation of a line in slopeintercept form that has a slope of 1/4 and passes through the point (8, 1).Do not use any spaces. Slope should be a reduced improper fraction.
2.Write the equation of a line in slopeintercept form that passes through the points ( 2, 5) and (2, 11). Do not use any spaces. Slope should be a reduced improper fraction.

1. You know the slope is 1/4, so the equation must be
y = (1/4)x + b
but the point (8,1) lies on it, so
1 = (1/4)(8) + b
1 = 2 + b
1 = b
y =(1/4)x + 1
2. the slope is (115)/(2+2) = 7/0
ahhh, the slope is undefined, so it must be a vertical line, and without any more work we can see the equation is
x = 2