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Practice for 5.4-5.6 quiz Name:______________________________________ 5.4 --Pg 243 1.) Name the following form of an equation of a line: Ax + By =C__________________________ Give an example of the this form_____________________________ 2.) Explain what integers are and give examples:____________________________________________ ____________________________________________________________________________________ 2.) Write an equation in standard form with integer coefficients for: y= 1 2 +8 3.) Write in standard form an equation of the line that passes through the given point and has the given slope. Use integer coefficients. (3,4) , m = -4 Section 5.5 pg 298 4.) You would like to record a song in a music studio. It costs an initial fee of $60 plus $100 per hour. The linear model for this situation relates the total cost of a song “y” , with the number of hours spent in the studio ‘x”. 1. what number corresponds to the slope? 2. What number corresponds to the y int? 3. Use the slope and y-intercept to write a linear model.(slope in form) (#4 next pg) 4. Use the linear model to find the cost of recording for 5 hrs. 5.) if you had $860 to spend for how many hours could you record? Section 5.6 6.) What angle must be present for lines to be perpendicular?___________________ Determine if the lines are perpendicular: Show work to prove your answer 7.) y = x + 4 , y = x – 4 1 2 8.) y= x – 7, y = -2x