Many electricians use a fixed-cost equation to determine how much to change for a house call. For example, an electrician might charge $45 for coming to your house and $25 for each hour of service. The fixed cost equation is y=25x+45.
a. How are the slope and y-intercept related to the eqatuin?
b. Explain why the fixed-cost equation is a linear function.
c. What is the rate of change in the fixed-cost equation?How is the rate of change related to the slope of the line represented by the equation? Why?
2007-05-31 15:30:35 · 3 answers · asked by dynasty_sgy 2 in Science & Mathematics ➔ Mathematics
a. the y intercept is 45 and the slope is 25
b. Because for every hour that transpires, the cost will always increase by the same amount--25 dollars.
c. The rate of change is the same as the slope--25 dollars.
2007-05-31 15:35:20 · answer #1 · answered by bruinfan 7 · 0⤊ 0⤋
If you went through the whole routine to show us the answer, why ask us to give you the answer?
Just read your statement.
2007-05-31 15:35:52 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋
what the said
2007-05-31 15:39:11 · answer #3 · answered by spoiled wife 3 · 0⤊ 0⤋