Rates and Ratios
Rational Numbers
Proportions
Linear Functions
Percent
(calculators allowed)
(calculators allowed)
100
1.1 Rates and Ratios
You plant 6 tulips for every 9 daisies.
What is the ratio of daisies to the total? Write in simplest form.
3/5
100
2.2 Rational Numbers
2 3/4 + (–7 1/2)
-3 3/4
100
4.1 Proportions
Solve for x
x/10 = 9/15
6
100
4.4 Linear Functions
slope = 1/4
100
5.1 Percent
Write 5/4 as a percent
125%
100
1.2 Rates and Ratios
What’s better?
10 books for $4 or
14 books of $7 ?
10 Books for $4
100
2.4 Rational Numbers
–8 – 2.76
-10.76
100
4.2 Proportions
scale is 5:8
x = 4.8 or 4 4/5
100
4.5 Linear Functions
Find the slope of a line passing through:
(4, 7) and (6, 10)
m = (10-7)/(6-4) = 3/2
100
5.2 Percent
What percent of 36 is 98 ?
Round to the nearest percent
272%
100
1.3 Rates and Ratios
Find the Unit Rate
100
3.2 Rational Numbers
5.2(–0.6)
–3.12
100
4.3 Proportions
Determine if this represents a proportional relationship
Why or why not?
yes.
1. It goes through (0,0)
2. The unit rate y/x is consistent
100
4.6 Linear Functions
Identify the slope and the y-intercept:
y = 2x – 4
(slope) m = 2
(y-intercept) b = –4
100
5.3 Percent
What is the percent increase from 15 to 18 ?
20%
100
1.4 Rates and Ratios
Find the Scale Factor:
small to large
SF = 2.5
100
3.3 Rational Numbers
(-2 1/2)/(1 2/3)
–3/2 or –1 1/2
100
**3.4 Rational Numbers
{22–5(2+1)}/{(–3) + (–4)}
7/-7 = –1
100
4.7 Linear Functions
y = 4x – 2
100
5.4 Percents
What is the total cost of a $32.00 meal with an 18% tip?
$37.76