Question

The graph below is on a semi-log scale, as indicated.

Find an equation for the graph shown

Y(x) =

Answer 1

y(x) = 2x - 3

Explanation:

Line pass through points (0, -3) and (3, 3)

Therefore:

`\boxed{(y-y_1)/(y_2-y_1) = (x-x_1)/(x_2-x_1)}`

`(y-(-3))/(3-(-3)) = (x-0)/(3-0)`

`(y+3)/(6) =(x)/(3)`

`(y+3)/(2) =x`

`y+3=2x`

`y=2x-3`