slope = -2 (10,32) write an equation

Question

slope = -2 (10,32) write an equation

Answer 1

Use the equation y= mx + b, m = -2, so y= -2x +b

substitute y =32 and x =10. 

the equation becomes:

32 = -2(10) + b , solve for b, substitute.

32 = -20 + b        add 20 to both sides

52  = b.

 

Check your work

 

32 = -2(10) + 52

32= -20 + 52

32 = 32.