Algebra - Lesson 5-1 - Slope & Equation of a Line Review

Algebra

Lesson 5-1

Slope & Equation of a Line Review

In this lesson, follow along to complete your notes on pg 2-3 in your packet

-the constant rate of change

-the steepness of a line

Remember, slope is ...

Formula From an equation From two points

From a graph From a table

Multiple Choice

Slope is which part of the linear equation?

• y

• m

• x

• b

Fill in the Blanks

What words help us describe slope?

Open Ended

How do you find slope from

Remember, the equation of a line is ...

y = mx + b

Write the equation of the line running through each set of points ...

Fill in the Blanks

Now you try

#3 on pg 3 - Write the equation of the line running through (7, -16) and (5, -10)

Does your work match mine?

Fill in the Blanks

Now you try

#4 on pg 3 - You must be showing your work in your packet as well!

Write the equation between the points (2, 4) and (5, 4)

Does your work match mine?

• Do you see how the x-values are the same?!

• When this happens, that means Bob unfortunately is free-falling and dying!

• So it will be a vertical line of x=#

• Now go on and complete #6

#5 is a little different!

#7-10 - Practice with tables

• Find slope first! This is your constant rate of change

• If x = 0 is on the table, THAT y-value is your y-intercept!

• If x = 0 is NOT on the table, then you must solve for b!

Remember ...

Multiple Choice

Now you try - complete the work for #8 and choose the correct answer below!

• y = -3/2x + 0

• y = 2/3x - 2

• y = 3/2x - 2

• y = -3/-2x + 2

Poll

Were you correct on #8?

• Yes!

• No, but I had the correct slope

• No, but I had the correct y-intercept

• No, I had both parts wrong

Now complete #9-10 on pg 3, showing all work

Poll

Were you correct on #9?

• Yes!

• No, but I had the correct slope

• No, but I had the correct y-intercept

• No, I had both parts wrong

Poll

Were you correct on #10?

• Yes!

• No, but I had the correct slope

• No, but I had the correct y-intercept

• No, I had both parts wrong

Open Ended

What questions do you have for Ms. Flanagan about this lesson?

Open Ended

What was the easiest part of this lesson?

Open Ended

What was the hardest part of this lesson?

Open Ended

Did you enjoy completing your notes this way?