Answer:
8) the ordered pair is a solution, 9) the ordered pair is not a solution
Explanation:
8) if you plug in the values of x into the equation, which is 7, 7+9 equals to 16, which is the y value in the ordered pair
9) the same is for this question, if you plug in the x value into the equation, which is 5, 2(5)+8 is equal to 10+8 which is equal to 18. This isn't equal to the y value in the ordered pair