Determine if @POINT is a Solution y=3x-21 , (-7,0)

$y = 3 x - 21$ , $(- 7, 0)$

Insert the values of $x = - 7$ and $y = 0$ into the equation to find if the ordered pair is a solution.

$0 = 3 (- 7) - 21$

Simplify $3 (- 7) - 21$ .

Multiply $3$ by $- 7$ .

$0 = - 21 - 21$

Subtract $21$ from $- 21$ .

$0 = - 42$

Since $0 \neq - 42$ , there are no solutions.

No solution

Since the equation is not true when the values are used, the ordered pair is not a solution.

The ordered pair is not a solution to the equation.