Write the equation of the line which passes through (3,7) and (-5,-1). Write the answer in slope-intercept form

Question

What is the eauation of the line

Answer 1

 

y = mx + b

 

m = [7 - (-1)]/[3 - (-5)] = 8/8 = 1

 

y = x + b

 

7 = 3 + b 

b = 4

 

y = x + 4

 

Test the answer.