Slope Intercept Form Word Problems
Presentation
•
Mathematics
•
9th Grade
•
Hard
James Gonzalez
FREE Resource
4 Slides • 9 Questions
1
Multiple Choice
YES I have my notebook out
No, I know it means a bad grade
2
Word Problems with Slope-Intercept Form
Objective: Create equations in slope intercept form given a 'real world' situation.
3
Multiple Select
If a rate of change describes how one quantity changes in relation to another quantity, which of the following situations represent a rate of change
the distance between San Fransisco and Seattle
the number of words you can type in a minute
the number of unread emails in your school account
4
A rate of change is a rate that describes how one quantity changes in relation to another quantity.
So what is the rate of change for each graph?
5
Multiple Choice
6
Multiple Choice
2 cm per hour
41 cm per hour
21 cm per hour
4 cm per hour
7
Nicole is a 17-year-old babysitter who charges a flat fee of $3, plus $5 per hour for up to 3 kids.
What would her 'rate' be?
If she watched 2 kids for 6 hours, how much money would she make?
EXAMPLE
8
A gym membership has a $15 membership fee and costs $40 per month.
EXAMPLE
A) Write an equation in slope-intercept form that represents the situation.
B) How much would you have to pay for the gym after 4 months?
C) How many months were you at the gym if the total cost was $215?
9
Multiple Choice
10
Multiple Choice
A canoe rental service charges a twenty-dollar transportation fee and thirty dollars an hour to rent a canoe. Write an equation representing the cost, y, of renting a canoe for x hours.
y = 20 + 30x
y = 30 + 20x
y = 50x
y = 60x
11
Math Response
Casey has run a small business making dessert baskets for 5 years. She estimates that her fixed weekly costs for rent and electricity are $200. The ingredients for one dessert basket cost $2.50.
Write an equation in slope-intercept form for the total cost, y, after making x number of baskets.
12
Math Response
Casey has run a small business making dessert baskets for 5 years. She estimates that her fixed weekly costs for rent and electricity are $200. The ingredients for one dessert basket cost $2.50. Her total costs for the week before were $562.50. How many dessert baskets did she make the week before?
13
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