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How do i od this linear equation in slope form

How do i od this linear equation in slope form-example-1
User Kiyanna
by
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1 Answer

2 votes
Answer:

y = -x + 4

The correct option is B

Step-by-step explanation:

Given the point (1, 3) and (3, 1)

The equation of a line is given as:

y = mx + b

Where m is the slope and b is the y-intercept.

To obtain the slope, we use the formula:


\begin{gathered} m=(y_2-y_1)/(x_2-x_1) \\ \\ =(1-3)/(3-1)=(-2)/(2)=-1 \end{gathered}

The equation now becomes:

y = -x + b

We can use the point (1, 3) to obtain the y-intercept. Using x = 1, and y = 3

3 = -1 + b

b = 3 + 1 = 4

Finally, we can write the equation as:

y = -x + 4

User Entrepaul
by
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