Linear Functions

SAT Math· difficulty 4/5

Given f(x)=2x5f(x) = 2x - 5 and the table for gg:

<table> <thead> <tr> <th>$x$</th> <th>1</th> <th>2</th> <th>3</th> <th>4</th> </tr> </thead> <tbody><tr> <td>$g(x)$</td> <td>7</td> <td>4</td> <td>1</td> <td>-2</td> </tr> <tr> <td>What is $f(g(3))$?</td> <td></td> <td></td> <td></td> <td></td> </tr> </tbody></table>
  • A

    55

  • B

    22

  • C

    3-3

    check_circle
  • D

    1-1

Explanation

g(3)=1g(3) = 1. f(1)=25=3f(1) = 2 - 5 = -3.

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