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Is (1, 2) a solution of y > 2x - 1

Step by step, with the reason for every step · Checking a solution · Algebra 1

Step by step

The question

Question: is (1, 2) a solution of y > 2x − 1.

y > 2x − 1
is (1, 2) a solution?

1 Read x and y

The first number is always x.

The second is y.

So x = 1 and y = 2.

(1, 2) → x = 1, y = 2

Careful!

Do not swap them.

The first number in (1, 2) is x.

Careful: not x = 2, y = 1 ✗

2 Put them in

Put x = 1 and y = 2 in.

2 >? 2(1) − 1

Work out each side.

2 >? 2 − 1

Is 2 more than 1?

Yes.

True!

2 > 1 true

It is true.

So (1, 2) is a solution.

(1, 2) is a solution

Let's look back.

First: read x and y.

Last: put them in.

Answer
(1, 2) is a solution

Your turn

Try this one yourself, then check:

is (1, 1) a solution of y > 2x − 2
Show the answer
(1, 1) is a solution

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