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algebra ch. 2
Variation and Graphs
| Question | Answer |
|---|---|
| What is a direct-variation function? | A function with a formula of the form y=kx^n, with k not equal to 0 and n>0 |
| What is a inverse-variation function? | A function with a formula of the form y=k/x^n, with k not equal to 0 and n>0 |
| How do you find the slope of a line? | The slope of a line through two points (x1, y1)and (x2, y2) equals y2-y1 divided by x2-x1 |
| What is the slope of the graph of the direct-variation function y=kx? | It has a constant slope of k. |
| What kind of symmetry do parabolas have, and what is the y-axis called? | reflection symmetry, and line of symmetry |
| If the parabola opens up what is the vertex? What if it opens down? | up=minimum, down=maximum |
| What is an asymptote? | A line apptoached by the graph of a function. |
Created by:
jsica
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