8.2D, 8.4C, and 8.8C: Week 1 STAAR Review

Week 1 STAAR Review

By the GREATs:
Mr. Dunn and Mr. Jones

Skills To Review:
8.2D, 8.4C, & 8.8C

1)

​Example

1. Convert all values to its decimal equivalent (USE CALCULATOR!)

2. Determine the order being asked.

3. Order the decimals.

Steps to success:

8.2D: order a set of real numbers

​2)

​Real Number	​Decimal value
​√3	​1.73
​1.85	1.85​
16​/10	1.6​
1 3/4​	1.75​
110%​	1.1

2)

3)

​Put	them​	in​	order!​	​
​	16/10	√3	1 3/4	1.85
​1.1	1.6​	1.73​	1.75​	1.85​

1. Convert each value to its decimal equivalent. USE Calculator!

2. Determine the order being asked.

3. Order the decimals forms.

8.2D: Follow the steps to order the set of real numbers.

Multiple Choice

• F

• G

• H

• J

Multiple Choice

• F

• G

• H

• J

Pause and take out your daily goal tracker. Rate your level of confidence with ordering real numbers (skill 8.2D).
Write today's date next to your rating.

Tracker 8.2D UPDATE!!

1)

​Example

1. (USE CALCULATOR!) Enter at least 2 points from table into DESMOS calculator

2. Input regression formula

3. Use the provided slope and y-intercept to answer question.

4. In tables, the y-intercept is the y value when x = 0.

Steps to success:

8.4C: Identify slope and y-intercept from graphs and tables

​2)

2)

3)

Multiple Choice

• A

• B

• C

• D

Multiple Choice

Q7

• F

• G

• H

• J

Multiple Choice

Using the table and the graph, identify the y intercept.

• (0,2)

• (2,6)

• (4,10)

• (6,14)

8.4C: Slope and y-intercept of a Graph Rise over Run

You can find the slope of a graph using rise/run

The y-intercept is where your graph crosses the y-axis

Slope-Intercept Form

m: slope (rate of change)

b: y-intercept

x: independent value (input)


y: dependent value (output)

What do we know from this graph?

Based on the title and labels of the graph, what does the slope and y-intercept mean in the real world context..

​

Interpreting Slope and Y-intercept

Determine what the point (2, 3) means on the graph?

What about the coordinate (4, 6)?

Interpreting Slope and Y-intercept

Multiple Choice

What does the y-intercept (0, 0) mean?

• There are 0 chocolate squares for 5 graham crackers.

• There are 5 chocolate squares for 0 graham crackers.

• There are 0 chocolate squares for 3 graham crackers.

• There are 0 chocolate squares for 0 graham crackers.

Multiple Choice

Robin went to an amusement park on her vacation. The table below shows the cost of her amusement park visit. What statement is true? (HINT: cost per ride is the slope and admission cost is the y-intercept)

• The cost per ride is $5.50

• The cost per ride is $3.50

• The cost of admission is $5.

• The cost of admission is $3.

Multiple Choice

What does the y intercept mean on this graph?

• It took the hiker 18 minutes to reach the bottom.

• It took the hiker 360 minutes to reach the bottom.

• The hiker started out at a height of 360 feet.

• The hiker started out at a height of 18 feet.

Multiple Choice

Q3

• F

• G

• H

• J

Fill in the Blanks

Multiple Choice

What is the slope given the points (-2,-1) and (4,3). (HINT: Put the two points in a table in DESMOS!)

• $$\frac{3}{2}$$

• $$\frac{4}{3}$$

• $$-\frac{2}{3}$$

• $$\frac{2}{3}$$

Pause and take out your daily goal tracker. Rate your level of confidence with finding slope and
y-intercept (skill 8.4C).
Write today's date next to your rating.

Tracker 8.4C UPDATE!!

8.8C: Solving Equations
Using Desmos

Multiple Choice

Use your (desmos) calculator to solve the equation.

• 4

• 14

• 24

• 6

Multiple Choice

• 4
• 3
• -4
• -3

Multiple Choice

2x+4+5x=13+4x

• -3
• 9
• 3
• 1

Pause and take out your daily goal tracker. Rate your level of confidence with solving equations (skill 8.8C).
Write today's date next to your rating.

Tracker 8.8C UPDATE!!