What is the solution to the system of linear equations -4x+y=-8 and y= -x+2?
1. Consider the line -2x+3y=24
a. The x intercept of this line is(……..)( Show your calculations)
b. The y intercept of this line is…. Show your calculations)
c. Plot the two points that you found in parts a and b on the graph and draw the line that passes between these points.
2. Some cells in the human body have a radios of 0.0003 inches. Rewrite the number in scientific notation.
3. In the year 2010 the post office handled about 1.7 x 10^11 pieces of mail.
a. Rewrite this number in standard notation.
b. How many O’s appear in your answer from part a?
4. Multiply and simplify (x+6)^2
5.a. A young child has $15.At the end of each day they add $1.25 to their savings.
Let x represent the number days of days they have been saving for
Let y represent the amount of saving in dollars.
Write a linear equation of the form y=mx+b which describes the of money that they have saved in terms of numbers days.
b. How many days will it take until they have $80. Show your work.
6. Consider the line -4x+y=-8 Fill out the table . X=0,1,2,3,4
b. Consider the line y=-x+2. Fill out the table X+0,1,2,3,4
c. Use your tables of values to plot both the graphs of -4x+y=-8 and y=-x+2 .
c. What is the solution to the system of linear equations -4x+y=-8 and y= -x+2?