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Sagot :

Given:

The table of values.

To find:

The relationship between the two variables and find the equation.

Solution:

Slope formula:

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

Using the lope formula, we get

[tex]\dfrac{6-1}{1-0}=5[/tex]

[tex]\dfrac{11-6}{2-1}=5[/tex]

[tex]\dfrac{16-11}{3-2}=5[/tex]

[tex]\dfrac{21-16}{4-3}=5[/tex]

[tex]\dfrac{26-21}{5-4}=5[/tex]

The slope is constant, i.e., 5. It means the relationship between the two variables x and y is linear with slope 5.

It means the value of y increases by 5 as the value of x increases by 1.

The equation of the line is:

[tex]y=mx+b[/tex]         ...(i)

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

A point of linear relationship is (0,1). It means the y-intercept is 1.

Putting [tex]m=5,b=1[/tex] in (i), we get

[tex]y=5x+1[/tex]  

Therefore, the required equation is [tex]y=5x+1[/tex].