How do you graph #f(x) = |2x + 1|#?

Answer 1

This is how you graph it. Hope you can understand.

The graph of that equation is a mirrored linear equation, that mirrors when the part inside the module function equals 0:

#(2x+1) = 0# #2x = -1# #x = -1/2#
That being said, its important to note that a modular function does not have a graph when #y < 0#, as we can see on the graph below:

graph{|2x+1| [-10, 10, -5, 5]}

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Answer 2

To graph the function ( f(x) = |2x + 1| ), you can follow these steps:

  1. Find the critical points by setting the expression inside the absolute value equal to zero: ( 2x + 1 = 0 ).
  2. Solve for ( x ) to find the critical point: ( x = -\frac{1}{2} ).
  3. Plot the critical point on the x-axis.
  4. Choose test points on either side of the critical point and plug them into the function to determine the behavior of the function in those intervals.
  5. Plot the points and sketch the graph accordingly, noting that the absolute value function will reflect negative values to positive.

Your graph should resemble a "V" shape with the vertex at the critical point ( x = -\frac{1}{2} ).

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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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