Linear Function Graph Through Points (4,7) and (7,2)

The graph of the linear function passes through the points B(4,7),A(7,2) B(4,7),A(7,2)

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Step-by-step video solution

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00:00 Determine the type of slope
00:04 Find the slope using 2 points
00:15 Use the formula to find the slope using 2 points
00:23 Substitute appropriate values according to the given data and solve to find the slope
00:38 The slope is negative, therefore the function is decreasing
00:46 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

The graph of the linear function passes through the points B(4,7),A(7,2) B(4,7),A(7,2)

2

Step-by-step solution

To solve this problem, we'll follow these steps:

  • Step 1: Calculate the slope using the formula m=y2y1x2x1 m = \frac{y_2 - y_1}{x_2 - x_1} .
    Given points are B(4,7) B(4,7) and A(7,2) A(7,2) . Therefore, x1=4 x_1 = 4 , y1=7 y_1 = 7 , x2=7 x_2 = 7 , y2=2 y_2 = 2 .
  • Step 2: Substitute the values into the formula:
    m=2774=53=53 m = \frac{2 - 7}{7 - 4} = \frac{-5}{3} = -\frac{5}{3} .
  • Step 3: Determine the nature of the function based on the slope:
    Since m=53 m = -\frac{5}{3} is negative, the function is a decreasing function.

Therefore, based on the slope being negative, the function represented by the line passing through these points is a Decreasing function.

3

Final Answer

Decreasing function

Practice Quiz

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For the function in front of you, the slope is?

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