?(?)=28.75+0.15? where n is the number of minutes, and C(n) is the monthly phone charge in dollars. Which of the following statements correctly explains the significance of the slope in the equation above? A. The phone company charges 0.15 dollars per minute to use the phone. B. For every minute you talk on the phone your monthly phone bill increases by 28.75 dollars. C. The fixed monthly service charge is 28.75 dollars. D. If you do not use your phone all month, your monthly phone bill will be 0.15 dollars. E. All of the above F. None of the above
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
where n is the number of minutes, and C(n) is the monthly phone charge in dollars.
Which of the following statements correctly explains the significance of the slope in the equation above?
A. The phone company charges 0.15 dollars per minute to use the phone.
B. For every minute you talk on the phone your monthly phone bill increases by 28.75 dollars.
C. The fixed monthly service charge is 28.75 dollars.
D. If you do not use your phone all month, your monthly phone bill will be 0.15 dollars.
E. All of the above
F. None of the above
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