Write the linear equation that gives the rule for this table.

x y
5 47
6 49
7 51
8 53

Write your answer as an equation with y first, followed by an equals sign.

1 answer

To find the linear equation that describes the relationship between \(x\) and \(y\) based on the table provided, we first identify the pattern.

Looking at the table:

\[ \begin{array}{c|c} x & y \ \hline 5 & 47 \ 6 & 49 \ 7 & 51 \ 8 & 53 \ \end{array} \]

We can see that as \(x\) increases by 1, \(y\) increases by 2. This indicates that the slope \(m\) of the line is 2.

Now we can use the point-slope form of the equation of a line, or start from the slope-intercept form \(y = mx + b\).

Given the slope \(m = 2\), we can now substitute in a point from the table to find \(b\). Let's use the point (5, 47):

\[ y = 2x + b \]

Substituting \(x = 5\) and \(y = 47\):

\[ 47 = 2(5) + b \] \[ 47 = 10 + b \] \[ b = 47 - 10 = 37 \]

Now, we can write the linear equation:

\[ y = 2x + 37 \]

Thus, the final answer is:

\[ y = 2x + 37 \]