Question

5.$\

$$\begin{cases}x + 2y = 10 \\\\y = 4\\end{cases}$$

$point: $(2, 4)$ yes / no

Explanation:

Step1: Substitute $x=2, y=4$ into first equation

$2 + 2(4) = 2 + 8 = 10$

Step2: Check if value matches RHS

$10 = 10$, and $y=4$ matches the given $y$-value.

Answer:

YES