Question

Use the information given to enter an equation in standard form.(-1,1) and (0,9) are on the line.

Answer 1

Express the general equation of the line having two points (x1,y1) and (x2,y2).

`\begin{gathered} y-y_1=(y_2-y_1)/(x_2-x_1)(x-x_1) \\ y-1=(9-1)/(0--1)(x+1) \\ y-1=(8)/(1)(x+1) \\ y=8x+9 \end{gathered}`

The point slope form is y=8x+9

Convert it into standard form implies,

`8x-y=-9`

Therefore, the answer is 8x-y=-9.