SOLUTION: Hello. I have to graph the equation f(x) = 0.15x - 28. I am completly lost. I also need to find the slope and y intercept.please help. thank you

Question 520151: Hello. I have to graph the equation f(x) = 0.15x - 28. I am completly lost. I also need to find the slope and y intercept.please help. thank you
Found 2 solutions by jessica43, Tatiana_Stebko:
Answer by jessica43(140) (Show Source): You can put this solution on YOUR website!
Let's start by finding the slope and y-intercept. To easily find both of these, you want your equation to be written in the basic graphing formula:
y = mx + b (where m = the slope and b = y-intercept)
Your formula is already written in this formula:
f(x) = 0.15x - 28
So in this problem, m = 0.15 and b = -28. Therefore your slope is 0.15 and the y-intercept is -28.
To graph this, you know that the y-intercept (the point where x=0) is at -28. So one of your points on the line is (0,-28). From there, using the slope, you move up the y-axis 0.15 every time you move over 1 on the x-axis. The graph is as follows:

Answer by Tatiana_Stebko(1539) (Show Source): You can put this solution on YOUR website!
The slope-intercept form of the equation is , where m is the slope, b is y-intercept
, so
- the slope
, then (0,-28) is y-intercept

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