QUESTION IMAGE
Question
what is the equation of the trend line in the scatter plot? use the two yellow points to write the equation in slope - intercept form. write any coefficients as integers, proper fractions, or improper fractions in simplest form.
Step1: Identify the two - point coordinates
Let the two yellow points be $(2,8)$ and $(6,0)$.
Step2: Calculate the slope $m$
The slope formula is $m=\frac{y_2 - y_1}{x_2 - x_1}$. Substitute $(x_1,y_1)=(2,8)$ and $(x_2,y_2)=(6,0)$ into it. $m=\frac{0 - 8}{6 - 2}=\frac{-8}{4}=- 2$.
Step3: Use the point - slope form to find the $y$ - intercept $b$
The slope - intercept form is $y = mx + b$. Use the point $(6,0)$ and $m=-2$. Substitute into the equation: $0=-2\times6 + b$. Then $0=-12 + b$, and $b = 12$.
Step4: Write the equation of the line
The equation of the line in slope - intercept form is $y=-2x + 12$.
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$y=-2x + 12$