Question

Complete the table below to find a solution to the linear equation -10 X - 4 y equals -20

Answer 1

The equation is -10x-4y=-20.

Substitute 0 for x in the equation to obtain value of y.

`\begin{gathered} -10(0)-4y=-20 \\ y=(-20)/(-4) \\ =5 \end{gathered}`

So point is (0,5).

Substitute 1 for x in the equation to obtain value of y.

`\begin{gathered} -10(1)-4y=-20 \\ -4y=-10 \\ y=(-10)/(-4) \\ =(5)/(2) \end{gathered}`

So point is (1,5/2).

Substitute 0 for y in the equation to obtain the value of x.

`\begin{gathered} -10x-4(0)=-20 \\ x=(-20)/(-10) \\ =2 \end{gathered}`

So point is (2,0).