Term
| what do you do if there is a problem with absolute value symbols? |
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Definition
| do the regular problem and then do a problem with the answer as a negative. The answer will be set up as regular answer and then OR neg. answer |
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Term
| ax+bx-7=12 how do you solve this? |
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Definition
1. combine like terms with 7+12 to get 19
2.divide a+b by 19
3.answer is 19/a+b |
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Term
| the sides of a triangle are in the ratio 3:4:5. What is the length pf each side if the perimeter of the traingle is 90 cm? |
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Definition
1. set the 3:4:5 equal to 90. Put X's on the numbers.
2.Divide.
3. Plug in your answer to 3x, 4x, and 5x. What you get will be your actual answers. |
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Term
| find the slope of the line through the pair of points? |
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Definition
| use formula m=y2-y1 and so on |
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Term
| Find the point slope form of the equation of the line passing through the points (-3,6) and (-2,7) |
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Definition
| use y2-y1___x2-x1 formula. It will help you at least narrow down the answers. |
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Term
| find an equation for the line: through (5,8) and perpencicular to y=2x+4 |
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Definition
| The answer is -1/2 because you take the slope and just change the sign. |
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Term
| determine whether y varies directly with x. if so find the constant of the variation and write the equation. |
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Definition
| set everything in the table as a fraction with the y value on top and divide. If you get all of the same number that is your answer. |
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Term
| find the value of Y for a given value of x. If y=200 when x=50, what is y when x=36 |
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Definition
| Use the equation k=y/x and se 200 over 50 which equals 4, then multiply 36 times 4. |
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