Writing Linear equations and functions and not functions
Presentation
•
Mathematics
•
7th - 8th Grade
•
Hard
Bella Tabora
Used 1+ times
FREE Resource
3 Slides • 0 Questions
1
Uber charges $2.00 plus $0.15 per mile while Lyft charges $1.50 plus $0.20 per mile. Write an equation to show the same price.
ANSWER: U = L
2 + .15x = 1.50 + .20x
Example
When writing the equation always write the problems given objects' first initials.Then use given information to write. Your unknown is always x (in some cases they say "per"). Make sure to include =!
Steps
2
Uber charges $2.00 plus $0.15 per mile while Lyft charges $1.50 plus $0.20 per mile. Write an equation to show the same price.
ANSWER: U = L
2 + .15x = 1.50 + .20x
Example
When writing the equation always write the problems given objects' first initials.Then use given information to write. Your unknown is always x (in some cases they say "per"). Make sure to include =!
Steps
3
Input | Output |
|---|---|
-4 | 2 |
-3 | -1 |
0 | 6 |
1 | 8 |
6 | 12 |
it's a function.
Example
Always focus on x.
Table: number repeated = NF
Graph: doesn't pass Vertical Line Test or touches 2 dots in the same line.
Use change in y/change in x.
Info
Uber charges $2.00 plus $0.15 per mile while Lyft charges $1.50 plus $0.20 per mile. Write an equation to show the same price.
ANSWER: U = L
2 + .15x = 1.50 + .20x
Example
When writing the equation always write the problems given objects' first initials.Then use given information to write. Your unknown is always x (in some cases they say "per"). Make sure to include =!
Steps
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