Remember: In y = (steady change) × x + (start), the number added on is the start and the number beside x is the change each step.
Tables, graphs and equations
1
Kai mows lawns. In the table, h is his hours and p is his dollars. How many dollars after 3 hours?
2
What equation gives p from h?
p = 3h + 4p = 4h + 3p = 7h
3
Kai's dollars are p = 3h + 4. After how many hours does he have 25 dollars?
4
In p = 3h + 4, what does the 4 tell us?
Kai earns 4 dollars each hour.Kai starts with 4 dollars.Kai works 4 hours.
5
Dee's savings are s = 2w + 1. Across is weeks w and up is dollars s. Which graph matches?
Graph 1Graph 2Graph 3
6
In d = 3t + 4, the graph starts at 4 on the up line when t = 0.
TrueFalse
Compare and explain
7
The equations y = 5x and y = x + 5 give the same y for every x.
TrueFalse
8
A taxi costs c dollars for m miles. Join each story to its equation.
13 dollars to start and 2 more for each mile
22 dollars for each mile and nothing to start
33 dollars for each mile
42 dollars to start and 3 more for each mile
Ac = 3m + 2
Bc = 2m + 3
Cc = 3m
Dc = 2m
9
A taxi's cost is c = 3m + 2, with m in miles. How many dollars for 5 miles?
10
Plant A grows h = 2d and plant B grows h = d + 3, with d days and h centimeters. After 4 days, which plant is taller?
Plant A is taller.Plant B is taller.They are the same height.
11
Plant A grows h = 2d and plant B grows h = d + 3, with d days and h centimeters. After how many days are the two plants the same height?
12
In y = 3x + 2, when x doubles from 1 to 2, y doubles from 5 to 10.
TrueFalse
13
Write a story that fits y = 4x + 5. Say what x and y stand for.
Scan the code at the top to mark this sheet on screenTake a photo of your answers or type them. It is marked for you automatically, and your score is kept.