Step by step
The question
Question: is (3, 4) a solution of y = 3x − 4.
y = 3x − 4
is (3, 4) a solution?
1 Read x and y
The first number is always x.
The second is y.
So x = 3 and y = 4.
(3, 4) → x = 3, y = 4
Careful!
Do not swap them.
The first number in (3, 4) is x.
Careful: not x = 4, y = 3 ✗
2 Put them in
Put x = 3 and y = 4 in.
4 =? 3(3) − 4
Work out each side.
4 =? 9 − 4
Is 4 equal to 5?
No.
That is false.
4 ≠ 5 false ✗
It is false.
So (3, 4) is not a solution.
(3, 4) is not a solution
Let's look back.
First: read x and y.
Last: put them in.
Answer
(3, 4) is not a solution