Trend Lines Quick Check
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Question
Use the image to answer the question.
A scatterplot graph shows x-axis ranging from 0 to 50 and y-axis ranging from 0 to 10. Multiple points are plotted around a line that points downward to the right with an arrowhead on the bottom.
The x-axis is drawn in increments of 5 but labeled in increments of 10. The y-axis is drawn in increments of 1 but labeled in increments of 2. The line passes approximately through left parenthesis 0 comma 8 right parenthesis, left parenthesis 10 comma 6 right parenthesis, left parenthesis 15 comma 5 right parenthesis, left parenthesis 20 comma 4 right parenthesis, left parenthesis 25 comma three right parenthesis, and left parenthesis 40 comma 0 right parenthesis. 14 points are plotted close to or on the line.
Write an equation in slope-intercept form of the trend line.
(1 point)
Responses
y=15x+8
y equals Start Fraction 1 over 5 End Fraction x plus 8
y=−15x+8
y equals negative Start Fraction 1 over 5 End Fraction x plus 8
y=−15x+3
y equals negative Start Fraction 1 over 5 End Fraction x plus 3
y=5.67x+8
y equals 5.67 x plus 8
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The correct answer is:
y=-0.25x+10