1. Write the interval in set notation.

[4,8)

A {x| 4x8}

B {x| 4x< 8}

C {x| 4 <x< 8}

D {x| 4 <x8}

Graph it on the real line.

2 Find the slope (if it is defined) of the line determined by the pair of points. (If an answer is undefined, enter UNDEFINED.)

(2,1) and (0,1)

3 For the equation, find the slopemandy-intercept (0,b) (when they exist). (If an answer does not exist, enter DNE.)

y=3x6

slope. m=

y-intercept

(x,y)=

4 For the equation, find the slopemandy-intercept (0,b) (when they exist). (If an answer does not exist, enter DNE.)

x=8

slope m=

y-intercept (x,y)=

5 Write an equation of the line satisfying the following conditions. If possible, write your answer in the formy=mx+b.

Slope3.25andy-intercept2