Question

Here's a graph of a linear function. Write the

equation that describes that function. Express it in slope-intercept form.

Answer 1

y = -2x -5

Explanation:

The line crosses the y-axis at -5. So, b = -5.

It goes down 2 units for each 1 unit to the right, so has a slope of ...

m = rise/run = -2/1 = -2

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The slope-intercept form of the equation of a line is ...

y = mx +b where m is the slope and b is the y-intercept

For the slope and y-intercept shown, the equation is ...

y = -2x -5