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Chapter 1
Functions
Question | Answer |
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Algebraic setnece consists of expressions related with a verb. such as equal to, less than, greater than, not equal, and approximately equal. | Examples: a + b = b +a, and 3x+ 9 <22 |
If Stacy has 2000 stamps and she buys 20 each month, how many wil she have after 3 months? | 2000+3(20)=2,060. |
Order Of Operations. | Please Excuse My Dear Aunt Sally a x u i d u r p l v d b e o t i i t n n i d t r t e p e i a h n y o c e t n t s s |
Function | A correspondence or pairing between two variables such that each value of the first (independent) variable corresponds to exactly one value of the second (dependent) variable. |
Range of a function | Input- domain (second number) Output- range (first number) |
f(x) notation | B(45) B(45)= 42^2/20=101.25 |
Vertical Line Test | If the coordinates have the same first number, then it does not pass unless the second coordinate is also the number number. |