Find the Rate of Change: Analyzing y=1-4x Linear Function

Given the linear function:

y=14x y=1-4x

What is the rate of change of the function?

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Step-by-step video solution

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00:00 Find the function's slope
00:04 Arrange the function to fit the formula
00:08 Use the formula to represent a linear function
00:14 We can see that the coefficient of X (M) is the function's slope
00:19 Find the function's slope using the coefficient of X
00:25 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

Given the linear function:

y=14x y=1-4x

What is the rate of change of the function?

2

Step-by-step solution

The given linear function is y=14x y = 1 - 4x . This can be rearranged to fit the standard format of a linear equation, y=mx+b y = mx + b , as y=4x+1 y = -4x + 1 .

In this form, the slope m m is simply the coefficient of x x . Here, m=4 m = -4 .

The slope of the linear function represents the rate of change of the function with respect to x x , meaning for every unit increase in x x , the value of y y decreases by 4 units.

Therefore, the rate of change of the function is m=4 m = -4 , which is option 4 among the given choices.

Thus, the solution to the problem is m=4 m = -4 .

3

Final Answer

m=4 m=-4

Practice Quiz

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

XY

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