Step by step
The question
Question: is (−2, 3) a solution of y = −x + 1.
y = −x + 1
is (−2, 3) a solution?
1 Read x and y
The first number is always x.
The second is y.
So x = −2 and y = 3.
(−2, 3) → x = −2, y = 3
Careful!
Do not swap them.
The first number in (−2, 3) is x.
Careful: not x = 3, y = −2 ✗
2 Put them in
Put x = −2 and y = 3 in.
3 =? −(−2) + 1
Work out each side.
3 =? 2 + 1
Is 3 equal to 3?
Yes.
True!
3 = 3 true
It is true.
So (−2, 3) is a solution.
(−2, 3) is a solution
Let's look back.
First: read x and y.
Last: put them in.
Answer
(−2, 3) is a solution