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Linear Functions

SAT Math· difficulty 4/5

Which linear function is consistent with the table?

<table> <thead> <tr> <th>$x$</th> <th>0</th> <th>4</th> </tr> </thead> <tbody><tr> <td>$f(x)$</td> <td>-2</td> <td>10</td> </tr> </tbody></table>
  • A

    f(x)=4x−2f(x) = 4x - 2

  • B

    f(x)=3x+2f(x) = 3x + 2

  • C

    f(x)=2x+1f(x) = 2x + 1

  • D

    f(x)=3x−2f(x) = 3x - 2

    check_circle

Explanation

Slope =(10−(−2))/4=3= (10 - (-2))/4 = 3. yy-intercept =−2= -2. f(x)=3x−2f(x) = 3x - 2.

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