Write the equation of a line in slope intercept form that passes through the points (0, 7) and (5, 3)

Question

anonymous · Answer

attachment

anonymous · Answer

IN order to write the equation of a line, you need the slope and one point...

anonymous · Answer

You need to find the slope:

anonymous · Answer

(y1 - y2)/(x1 - x2) = slope

anonymous · Answer

so, the slope is -4/5...  then, plug into  y = mx + b

anonymous · Answer

(since (0, 7) is one of the points, we know b = 7...  the y-intercept is 0,7...)
so, the equation is  y = -4/5x + 7

anonymous · Answer

By the way, since it is a multiple choice question, a short cut would be to plug the 2 points into each equation!!  Whichever equation works for the 2 points is the solution!

anonymous · Answer

i forgot about plugging it in, thanks mathplane