Question 66155
C street has an x-intercept of -8 and a slope of 2. use the x-intercept point to write the equation of c street in point slope form.
Answer: y-0=2(x+8)
--------------------------


D street crosses c street at the point (-10,-4) and is perpendicular to the y-axis. Determine the y-intercept point and write the equation of d street. 
and im not sure of the answer for this one.
D is a horizontal line with equation y=-4
--------------------

but this is the question i need help with

G street crosses f street at the point (3,7) and is parallel to d street. Determine the y-intercept point of g street and write the equation of g street.
If G is parallel to D, it is a horizontal line.
Since it passes thru (3,7) its equation is y=7
Comment: You didn't say anything about "f" street, but that info is not
needed.
-------------
Cheers,
Stan H.