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Data: x y 4 1 5 2 6 3 7 4 y = x - ?

Sagot :

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data:

x y

4 1

5 2

6 3

7 4

y = x - ?

Step 02:

equation of the line:

y = x - ?

y = mx + b

m = slope = 1

point ( 4 , 1)

Point-slope form of the line

(y - y1) = m (x - x1)

(y - 1) = 1 (x - 4)

y - 1 = x - 4

y = x - 4 + 1

y = x - 3

The answer is:

y = x - 3