Question

What is the linear equation for a line that passes through points (2,4) and (1,0)?

Answer 1

y = 4x - 4

Explanation:

`(Y_2 - Y_1)/(X_2 - X_1)` = `m`, the slope

Label your ordered pairs.

(2, 4) `(X_1, Y_1)`
(1, 0) `(X_2, Y_2)`

`(0 - 4)/(1 - 2)` = `m`

-4/-1 = 4 because two negatives make a positive.

graph{y = 4x - 4 [-18.02, 18.02, -9, 9.01]}