Question

An illustration of a scatterplot graph shows x-axis ranging from 0 to 10 in increments of 1 and y-axis ranging from 0 to 50 in increments of 10. Multiple points are plotted around a line that points downward to the right with an arrowhead on the bottom.
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Write an equation in slope-intercept form of the trend line.

Answer 1

The line crosses the y-axis at (0, 50) and the x-axis at (10, 0). Slope = (0 − 50)/(10 − 0) = −5, so the equation is

y = −5x + 50.