#### Answer

solution; satisfies

#### Work Step by Step

Substituting 4 to $x$ in $y=x^2+3$ gives:
$y=x^2+3
\\y=4^2+3
\\y=16+3
\\y=19$
Thus, the point $(4, 19)$ is a solution of $y=x^2+3$.
So $(4, 19)$ satisfies the equation.
Therefore, the missing expressions in the given statements are :
solution;
satisfies