Graphs
Equations
Scale Drawings
Tables
Situations
100
is it proportional?
proportional!
- 0,0
- straight
100
y = 7x +2
is the equation above proportional
not proportional
y = cop x
NOT cop x +2
100
Yes! it is not stretched, but proportional
100
Is the table below proportional?
x y
2 4
6 8
12 14
Not proportional
the cop from 2 to 4 is x2.
the cop from 6 to 8 is 4/3
100
At the peanut factory Emely shells peanuts at 3 minutes a pound. Is this relationship proportional?
proportional!
- has a 0,0
- when x goes up so does y
200
$2.5
200
What is the equation of the graph?
y=4x
200
Are the triangles VWX and STU proportional?
Yes! Proportional
18 ÷ 2 = 9
8 ÷ 2 = 4
12 ÷ 2 = 6
200
Find the CoP of the table and explain it with the context of the units used.
6.5
200
C: d = 8w
ex: if week = 1, then dollar = 8
300
Interpret the meaning of point B in the graph.
For every 20 fluid ounces there are 75 grams of sugar
300
At the nike store, the equation s = 0.5z describes the relationship between shoes made (s) and zippers made (z). If the store reports it has made 200 shoes today, how many zippers did it make?
200 = 0.5z
400 = z
300
What is the value of the missing side? (answer with a fraction)
y/x = 30/10 = 3
cop = 3
y÷cop = x
20/3 = x
300
Calculate the depth of the water at 9 minutes.
5.4 cm
300
Ariana runs 3/5 miles in the same time it takes Eduardo to run 2/3. When Ariana has run 1 mile how far has Eduardo ran?
9/10ths of a mile