## anonymous one year ago help me please!!!! y= -2/3x +400 Describe how you would graph this line using the slope-intercept method.

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1. anonymous

It's best to start off with the two axis intercepts. You already know one just by reading this equation, the y-axis.

2. anonymous

The y axis is (0, 400)

3. anonymous

so the slope is rise over run and 400 is the y intercept.

4. anonymous

Yes, and solve for the x-axis by settings y = 0 = -2/3x + 400

5. anonymous

$\frac{ 2 }{ 3 } x = 400$

6. anonymous

So the x-axis is (600, 0)

7. anonymous

Connect your x-axis with your y-axis, and extend both ends of the line to the edge of your graph. You're done!

8. anonymous

3 Write the equation in function notation. Explain what the graph of the function represents. Be sure to use complete sentences.

9. anonymous

@math1234

10. anonymous

Functional notation means that you express y in terms a function of x.

11. anonymous

$f(x) = -\frac{ 2 }{ 3 } x + 400$

12. anonymous

|dw:1435179760642:dw| start at 400 go down two over three