**1.** Solve for x.

¾x+12=¼x+4

**2.** Find the equation of the line that goes through

the point (3,4) and is perpendicular to 3x+5y=12.

**3.** Describe the function.

x | y |
---|---|

1 | 3 |

8 | 24 |

10 | 30 |

**4.**A triangle's total area is 40cm². Its base

length is 8cm. Tell how to find the height of the triangle.