How do you solve and graph #-5 < 2x + 1 < 4#?

Answer 1

#-3< x<3/2#

Shade the area between a dashed line for #x=-3# and a dashed line for #x=3/2#

We want just #x# on its own in the middle.

First,we take away 1 from both sides:

#-5-1<2x+1-1<4-1# #-6<2x<3#
Then divide all terms by #2#:
#-6/2<(2x)/2<3/2# #-3< x<3/2#
To graph the inequality, draw a dashed line for #x=-3# and #x=3/2# and shade between the two lines.
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Answer 2

To solve and graph the inequality -5 < 2x + 1 < 4:

  1. Subtract 1 from all parts: -5 - 1 < 2x + 1 - 1 < 4 - 1 -6 < 2x < 3

  2. Divide everything by 2: -6/2 < 2x/2 < 3/2 -3 < x < 3/2

  3. The solution is: -3 < x < 3/2

To graph this on a number line:

  • Place an open circle at -3 (since x is not equal to -3).
  • Place an open circle at 3/2 (since x is not equal to 3/2).
  • Draw a line segment between these two points.
  • Shade the line segment between -3 and 3/2 to indicate that x is within this range but not including the endpoints.
  • This represents the graph of -3 < x < 3/2 on a number line.
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Answer 3

To solve the compound inequality -5 < 2x + 1 < 4, we need to isolate the variable x.

First, subtract 1 from all parts of the inequality: -5 - 1 < 2x + 1 - 1 < 4 - 1 -6 < 2x < 3

Next, divide all parts by 2: -6/2 < 2x/2 < 3/2 -3 < x < 3/2

Now, graph the solution on the number line: -3 |---o-------------------------o---| 3/2 -3 x 3/2

The open circles indicate that -3 and 3/2 are not included in the solution set, as they don't satisfy the original inequality. The shaded region between -3 and 3/2 represents all values of x that satisfy the inequality.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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