You can use a bar diagram to help you write the equation of a linear function.
A cable company charges a $50 monthly fee for basic cable and $8 per
month for each premium channel a customer orders.
t, total cost per month
50
8
P, number of premium channels
The function in the form
y = mx + b is t = 8p + 50.
А
monthly fee for basic cable
Colleen opened a savings account with $50. She plans to deposit $20 each
month into the account.
20
initial amount
deposited