Write an equation of the line that has a slope of -3 and y-intercept 7 in slope-intercept form

Question

Write an equation of the line that has a slope of -3 and y-intercept 7 in slope-intercept form

Answer 1

The slope-intercept form of the equation of a line is:

       y = mx + b

                          where m = slope

                          the point (0,b) is the y-intercept (the point where x=0)

 

So, the problem tells you the slope and the y-intercept; use those constants in place of m and b.

Answer 2

My hint is: y = mx + b. What information do you have at hand?