Can a Decreasing Function Connect These Two Points? Graph Challenge

Copy the points and complete the graph of the function according to the instructions, if it is not possible explain why.

Is it possible to generate a decreasing function with the two given points?

000

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:13 Can we create a decreasing function from two points?
00:16 Let's add the points to complete our graph.
00:26 Notice how the function decreases as we move from left to right.
00:31 And that's how we solve this question!

Step-by-step written solution

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1

Understand the problem

Copy the points and complete the graph of the function according to the instructions, if it is not possible explain why.

Is it possible to generate a decreasing function with the two given points?

000

2

Step-by-step solution

To determine if a decreasing function is possible with the two given points, we need to calculate the slope between them based on the common definition of a decreasing function.

Let's follow these steps:

  • Step 1: Identify the given points.
  • Step 2: Calculate the slope using these points.
  • Step 3: Verify that the slope is negative.

Step 1: The points appear to be roughly at coordinates near (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2) according to their positions on the graph, with exact coordinates not provided, we'll assume accurate readings from the visual information.

Step 2: Calculate the slope using the formula:

slope=y2y1x2x1 \text{slope} = \frac{y_2 - y_1}{x_2 - x_1}

Given the visual interpretation:

x1<x2 x_1 < x_2 and y1>y2 y_1 > y_2 , so this ensures the change in yy is negative when divided by a positive change in xx.

Step 3: As the slope slope=y2y1x2x1\text{slope} = \frac{y_2 - y_1}{x_2 - x_1} is negative, the function represented by these points is decreasing.

Therefore, it is POSSIBLE to generate a decreasing function with the two given points.

3

Final Answer

Possible

Practice Quiz

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Is the function in the graph decreasing? yx

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