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

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

Here's a graph of a linear function. Write the equation that describes that function-example-1

1 Answer

4 votes

Answer:

the slope intercept form is y = (1/2)x - 1

Explanation:

The slope-intercept form is, y = mx + b

We see from looking at the graph that,

at x = 0, y = -1

So, from this we find that b = -1

at x = 2, y = 0,

now, we find the slope m,

using,


m = (y_(2) -y_1)/(x_2-x_1)

Using x_2 = 2, y_2 = 0,

x_1 = 0, y_1 = -1, we get,

m = (0-(-1))/(2-0)

m = 1/2

So, the slope intercept form is,

y = (1/2)x - 1

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