a line passes through the point (-3,-4) and its y-intercept is (0,9). what is the equation of the line that is parallel to the first line and passes through the point (3,-7)?

a. y=3/5x+2
b. y=5/3x+2
c. y=-5/3x-2
d. y=5/3x-2

Question

a line passes through the point (-3,-4) and its y-intercept is (0,9). what is the equation of the line that is parallel to the first line and passes through the point (3,-7)?

a. y=3/5x+2
b. y=5/3x+2
c. y=-5/3x-2
d. y=5/3x-2

mathmale · Answer

Looks as tho' we're comparing two parallel lines.  Remember:  if two lines are parallel, they have the same slope.

If the given line passes through (-3,-4) and has y-intercept (0,9), we could re-write that to say "the given line passes thru (-3,-4) and (0,9).

Use the slope formula to obtain the slope of this line.

Now we need to find the equation of a new line parallel to the given one.

We know the slope of this line and one paoint on the line.  Use the point-slope formula for the equation of a straight line to find the equation of this new ilne.

anonymous · Answer

whats the anwser @mathmale

mathmale · Answer

Sorry, BIGG, but my aim is always to help the other person to learn how to solve his or her own problems.  I don't just give out answers without involving you in same concrete and positive way.  

Please look up "point-slope form" and write it out here.