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The question is : solve the inequality x^2 ≥ x and graph the solution set

User Rayna
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1 Answer

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8 votes

Answer

The two solutions to this inequality are

x ≤ 0

OR

x ≥ 1

The graph is attached below

Step-by-step explanation

We are told to solve the inequality equation given and plot the graph of the solution set

x² ≥ x

x² - x ≥ 0

x (x - 1) ≥ 0

At this point, the solution set if this was a normal equation would be

x (x - 1) = 0

x = 0 or x - 1 = 0

x = 0 or x = 1

So, the possible solution sets include

x ≤ 0

0 ≤ x ≤ 1

x ≥ 1

And the equation is that

x (x - 1) ≥ 0

If x ≤ 0, let x = -1

x (x - 1) = -1 (-1 -1) = -1 (-2) = 2 ≥ 0

Hence, x ≤ 0 is a solution

If 0 ≤ x ≤ 1, let x = 0.5

x (x - 1) = 0.5 (0.5 -1 ) = 0.5 (-0.5) = -0.25 not ≥ 0

Hence, 0 ≤ x ≤ 1 is not a solution

If x ≥ 1, let x = 2

x (x - 1) = 2 (2 -1 ) = 2 (1) = 2 ≥ 0

Hence, x ≥ 1 is a solution

So, the two solutions to this inequality are

x ≤ 0

OR

x ≥ 1

To plot the graph now,

In graphing inequality equations, the first thing to note is that whenever the equation to be graphed has (< or >), the circle at the beginning of the arrow is usually unshaded.

But whenever the inequality has either (≤ or ≥), the circle at the beginning of the arrow will be shaded.

And, x ≤ 0 means the wanted region is the region from x = 0 to all the numbers less than 0.

x ≥ 1 means the wanted region is the region from x = 1 to all the numbers greater than 1.

The graph of this solution set is attached under 'Answer'

Hope this Helps!!!

The question is : solve the inequality x^2 ≥ x and graph the solution set-example-1
User Oleksii Tambovtsev
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2.6k points