Question

Find the value of b for this line

Answer 1

b = - 12

Explanation:

substituting m =
`(4)/(5)` , x = 10, y = - 4 into y = mx + b , gives

- 4 = (
`(4)/(5)` × 10) + b

- 4 = (4 × 2) + b

- 4 = 8 + b ( subtract 8 from both sides )

- 12 = b