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Sams ALGEBRA EXAM
Question | Answer |
---|---|
How would you graph this type of equation? y=x+b | x=slope b=y-intercept You would graph a point at the y-int and then do rise over run with the slope to draw the line. (ex: 2=2/1 rise 2 right 1) |
How do you find the rate of change in a table? | y/x divide y over x and simplify. If that doesn't work, you need to add or subtract. (ex: 2x+4) |
What do you do to find the slope of a pair of points? (ex: (1,70) (10,1)) | m=y2-y1/x2-x1 |
How would you find the slope of a line looking at a graph? | Find the y-int and do rise/run. |
If a line is horizontal, what is it's slope? | 0. |
If a line is vertical, what is it's slope? | Undefined. |
Explain graphing an inequality. | It would look something like this: y<x-b and negative means to shade below and vice versa. If the <,> is underlined that means the line is solid, if it is not then the line is dotted. |