Answer
a solution
Work Step by Step
Substituting the $x$ and $y$-coordinates of $(
-1,4
)$ in the given equation, $
4x+3y=8
,$ results to
\begin{array}{l}\require{cancel}
4x+3y=8
\\\\
4(-1)+3(4)=8
\\\\
-4+12=8
\\\\
8=8
\text{ (TRUE)}
.\end{array}
Since the substitution above resulted in a TRUE statement, then the given point is $\text{
a solution
}$ to the given equation.