Slope Review #2

Slope Review #2

by Josephine Bly

​Objective

• ​Understand the layout of your test on Thursday

• Review the definition and purpose of slope

• ​Practice finding the slope (three methods)

• ​Discuss drawbacks of each method

• Learn and practice slope-intercept form

Multiple Choice

What is the definition of slope?

• the steepness of a line

• the equation of a line

• the rate of a line

Multiple Choice

What is the purpose of slope

• tells us the next value for a specific input

• tells us where the line is going

• tells us how fast/slow a line is rising/falling

Multiple Select

Check all that apply. What are the other names for slope?

• rate

• constant of proportionality

• acceleration

• jerk

Multiple Select

Check all that may apply. What are the different types of slopes?

• positive

• negative

• constant

• undefine

Multiple Choice

What type of slope?

• negative
• steep
• undefined
• zero slope

Multiple Choice

What type of slope?

• undefined
• positive slope
• negative slope
• zero slope

Multiple Choice

What is the slope in the picture?

• Positive
• Negative
• Zero
• Undefined

Multiple Choice

What type of slope?

• zero slope
• undefined
• negative
• positive

Multiple Choice

Find the slope:

• 3/4
• 4/3
• -3/4
• -4/3

Multiple Choice

Find the rate of change

• 3
• -3
• -1/3
• 1/3

Multiple Choice

What is the constant of proportionality?

• X $3

• X $4

• X $2

• X $9

Multiple Choice

Determine the constant of proportionality for the table. Express your answer as y = kx

• y = 33x

• y = 0.003x

• x = 33y

• 33k

Multiple Choice

Determine the constant of proportionality for the table. Express your answer as y = kx

• y = 30k

• y = 30x

• y = 0.03x

• y = 9x

​Understanding What the SOL

​Simple and Silly

Slope Intercept Form, y = mx + b

the "slope intercept form" of a line is a convenient way to identify the slope and y - intercept (the point where the line and y axis intersect)

y = mx + b

The slope intercept equation is comprised of two constant terms, namely m and b

• m = 3/5, this is our slope

• b = 7, this our y - intercept

Multiple Choice

$$What\ is\ the\ slope\ of\ the\ following\ equation\ y\ =\ -7x\ +\ 5?$$  

• -7

• 5

Multiple Choice

$$What\ is\ the\ y-intercept\ of\ the\ following\ equation\ y=-7x+5?$$  

• -7

• 5

Multiple Choice

$$What\ is\ the\ slope\ of\ the\ following\ equation\ y\ =\ -3x\ +\ 2$$  

• 1/3

• 3

• -3

• 2

Multiple Choice

$$What\ is\ the\ y-int\ of\ the\ following\ equation,\ y=-\frac{3}{5}x\ -30?$$  

• $$\frac{3}{5}$$  

• -30

• 30

• - $$\frac{3}{5}$$