1-Find an equation of the line that passes through the given points.

(-1,2) and (1,6)

2- Find an equation of the line that passes through the origin and has a slope of 4

3- Find an equation of the line satisfying the given conditions. thought (2,3) and parallel to

8x-2y=3

4- Find an equation for the line which passes through(4,10) and is perpendicular to the line containing(0,3) and (3,6).

5- The lost value of equipment over a period of time is called depreciation. The simplest method for calculating depreciation is straight-line depreciation. The annual straight-line depreciation D of an item that costs x dollars with a useful life of n years is

D=(1/n)x.

Find the depreciation for items with the given characteristics.Cost is $15,964;

life is 12yr

6-A handbag company had3%of the market in2011;in2015,it had21%.

(a) Write a linear equation expressing the percentage of the luxury handbag market y that the company had x years after 2000.

(b) What was the percentage of the market that the company had in

2013.

(c) If the trend continues, what will be the first full year in which the company had 20% of the market?