QUESTION IMAGE
Question
write the linear equation that gives the rule for this table.
| x | y |
|---|---|
| 4 | 3 |
| 5 | 4 |
| 6 | 5 |
write your answer as an equation with y first, followed by an equals sign.
submit
Step1: Find the slope (m)
The slope \( m \) between two points \((x_1, y_1)\) and \((x_2, y_2)\) is given by \( m=\frac{y_2 - y_1}{x_2 - x_1} \). Let's take the first two points \((3, 2)\) and \((4, 3)\). Then \( m=\frac{3 - 2}{4 - 3}=\frac{1}{1} = 1 \).
Step2: Find the y - intercept (b)
The slope - intercept form of a linear equation is \( y=mx + b \). We know \( m = 1 \), and we can use one of the points, say \((3, 2)\). Substitute \( x = 3 \), \( y = 2 \) and \( m = 1 \) into the equation: \( 2=1\times3 + b \). Solve for \( b \): \( 2=3 + b \), so \( b=2 - 3=- 1 \).
Step3: Write the equation
Using the slope - intercept form \( y=mx + b \) with \( m = 1 \) and \( b=-1 \), we get \( y=x - 1 \).
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\( y = x - 1 \)