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| − | Two trucks having sex
| + | In mathematics, a '''variable''' is a number whose value is not known. In basic arithmetic problems, the variable is typically the answer which the student must find: |
| − | Two trucks having sex
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| − | My muscles, my muscles
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| − | Involuntarily flex
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| − | Two trucks having sex
| + | Given: |
| − | Two trucks having sex
| + | 5 + x = 12 |
| − | My muscles, my muscles
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| − | Involuntarily flex
| + | Find x. |
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| − | TWO PICKUP TRUCKS
| + | Since 5 + 7 = 12, the answer is: |
| − | MAKING LOVE
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| − | AMERICAN MADE
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| − | BUILT FORD TOUGH
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| − | TWO BEAUTIFUL MURDER MACHINES
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| − | AMERICAN ANGELS IN THE SKY
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| − | GROWN MEN CRY
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| − | Two trucks having sex (oh yes)
| + | x = 7 |
| − | Two trucks having sex (oh yes)
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| − | My muscles (UH) My muscles (UH)
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| − | Involuntarily flex
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| − | Two trucks, having sex (oh yes)
| + | A variable is usually is the subject or part of a [[function]] and must be subject to change while not affecting the structure behind the function in which it acts. |
| − | Two trucks, having sex (oh yes)
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| − | my muscles (UH) my muscles (UH)
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| − | Involuntarily flex
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| − | RIGHT BY MY SIDE
| + | For example, if we have a function: <math>f(x,y)=x^{2}+3y</math>, then <math>x,y</math> are said to be the variables of the function, <math>f</math>. |
| − | THERE'S ZZ TOP
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| − | AND ROBERT Z'DAR
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| − | FROM MANIAC COP 1, 2 and 3
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| − | THIS BARBECUE COULD BRING YOU TO YOUR KNEES
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| − | AND SO COULD THESE TWO TRUCKS
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| − | Two trucks holding hands
| + | Further, <math>f(1,2)=(1)^{2}+3(2)=1+6=7</math>. We change the variable and thus alter the value of the function. |
| − | Two trucks holding hands
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| − | The passion, the passion
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| − | Is more than I can withstand
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| − | Two trucks holding hands
| + | Sometimes a function can have also a [[parameter]]. A parameter is similar to a variable, but is not written like a variable and is thus more similar to a [[constant]]. For example, if we a function: <math>f(x,y) = x^2 + ay</math>, then <math>a</math> is said to be a [[parameter]]. It does not change like the variables x and y, but it can nonetheless take different values. It is important to clearly distinguish the two concepts. |
| − | Two trucks holding hands
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| − | The passion, the passion
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| − | My big fat heart expands
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| − | TWO PICKUP TRUCKS
| + | The [[set]] of all variables upon which a function acts is said to be the [[domain]]. The set of all values that a function can take due to its domain is called its [[range]]. |
| − | ONE CYLINDER BLOCK
| + | [[Category:Mathematics]] |
| − | CRUSH MY BODY LIKE A ROCK
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| − | SO BEAUTIFUL
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| − | NO STARS TONIGHT
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| − | JUST FIREWORKS AND EAGLES IN THE SKY
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| − | THE FOUNDING FATHERS CRY
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| − | Two trucks having sex (oh yes)
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| − | Two trucks having sex (oh yes)
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| − | my muscles (UH) my muscles (UH)
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| − | Involuntarily flex
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| − | | |
| − | Two trucks, having sex (oh yes)
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| − | Two trucks, having sex (oh yes)
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| − | my muscles (UH) my muscles (UH)
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| − | Involuntarily flex
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| − | | |
| − | Two trucks having sex
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| − | Two trucks having sex
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| − | My muscles, my muscles
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| − | Involuntarily flex
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| − | Two trucks having sex
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| − | Two trucks having sex
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| − | My muscles, my muscles
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| − | Involuntarily flex
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| − | Two trucks (having sex)
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| − | Two trucks (having sex)
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| − | Two trucks (having sex, having sex, having sex)
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| − | Two trucks (having sex)
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| − | Two trucks (having sex)
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| − | Two trucks (having sex, having sex, having sex)
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