Posted by daisy on Saturday, September 1, 2012 at 7:27pm.
The relationship described below can be modeled using an equation. Identify the variables and write an equation to solve the questions below.
Number of Credits Fees
a) Write an equation to calculate the fees F when the number of credits n is given.
b) Use the equation from part (a) to calculate the fee for 17 credits
- math - Anu, Saturday, September 1, 2012 at 7:35pm
Graph it if you don't understand my solution:
Linear equations follow the format y=mx+b
where m is the slope and b is the y-intercept.
let y= fees and x=number of credits
now calculate slope (change in y/change in x)
Plug in any point to find b
so your equation is y=200x+1400
- math - Damon, Saturday, September 1, 2012 at 7:39pm
Looks like a straight line of slope (600/3) to me since fees increase 600 for every three credits.
F = 200 C + b solve for b
2000 = 200 (3) + b
2000 = 600 + b
b = 1400
Fee = 200 (Credits) + 1400
check with (15 , 4400)
4400 = (200)(15) + 1400 ?????
4400 = 3000 + 1400 ???? YES, check
Fee = 200 (17) + 1400 for part b
Answer This Question
More Related Questions
- math - The relationship described below can be modeled using an equation. ...
- math - Write an equation to calculate the fees F when the number of credits n is...
- Math - An annual pass covering entrance fees to more than 2000 national parks ...
- Math - ewrite each equation below. Then solve your new equation. Be sure to ...
- Math - Rewrite each equation below. Then solve your new equation. Be sure to ...
- Algebra 1 - What is an equation of a line perpendicular to the line with ...
- math - compare and contrast: below are two equations. solve each equation and ...
- Math - Write an equation to represent the relationship " a number decreased by 7...
- math - Write an expression from the model below and then simplify the ...
- Algebra - Use the given information to write an equation. let x represent the ...