Algebra 7-8  Equations for all lines

 

In 1-5, rewrite the equations in standard form with integer coefficients.

 

1.         y = 2x -4                      Rewritten:  _____________________

 

2.         y = -5x + 7                   Rewritten:  _____________________

 

3.         y = ½ x – 5                  Rewritten:  _____________________

 

4.         y = 2/3 x + 4                  Rewritten:  _____________________

 

5.         y = 2/5 x – 9/4                Rewritten:  _____________________

 

 

6.         When ordering donuts, I get either plain glazed or blueberry cake. 

            Plain glazed cost 40 cents while blueberry cake cost 60 cents. 

           

            a.)  Write an equation in standard form to describe all the

                  different combinations I could buy if I had $4.80.

                                                            Equation: ______________________

 

            b.)  What is the largest number of plain glazed I could buy?  _________

 

            c.)  What is the largest number of blueberry cake I could buy? __________

 

 

7.         On the weekend, Mr. Bachrach runs a hotdog stand that sells just

            hotdogs and cokes.  Last weekend he sold c cokes for $2 each and

             h hotdogs for $3 each.  He made $24 that weekend.

 

            a.)  Write an equation in standard form that describes the above situation.

                       

                        Equation:  _________________________

 

            b.) Give four possible solutions to the equation. 

 

                        He could have sold ___ hotdogs and ___ cokes.

            OR

                        He could have sold ___ hotdogs and ___ cokes.

            OR

                        He could have sold ___ hotdogs and ___ cokes.

            OR

                        He could have sold ___ hotdogs and ___ cokes.