Title: Section 5 - 4 Point-Slope Form
1Section 5 - 4Point-Slope Form
- Objectives
- To write and graph linear equations using
point-slope form
2Â
3Heres Why it Works
4Problem 1 Writing an Equation in
Point-Slope Form
- A) A line passes through (-3, 6) and has slope
-5. What is an equation of the line?
5Problem 1 Writing an Equation in
Point-Slope Form
6Problem 1Got It?
- A line passes through (1, -4) and has slope 3.
What is an equation of the line in point-slope
form?
7Problem 2 Graphing Using Point-Slope
Form
8Problem 2 Graphing Using Point-Slope
Form
9Problem 2Got It?
- What is the graph of the equation y 3 -2(x
2)?
10HOMEWORK
- Textbook Page 318 8 15 All
11Ticket Out
12Section 5 - 4Continued
- Objectives
- To write and graph linear equations using
point-slope form
13WARM UP
What other method could you use to graph y 3
-2(x 2), besides plotting (2, -3) and then
using the slope -2/1 to plot a second point?
14Problem 3 Using Two Points to Write an
Equation
- What is an equation in point-slope form of the
line below? - What is this equation written in
- slope-intercept form?
15Problem 3 Using Two Points to Write an
Equation
- B) What is an equation in point-slope form of the
line below?
What is this equation written in slope-intercept
form?
16Problem 3Got It?
- What is an equation in point-slope form of the
line shown below?
What is this equation written in slope-intercept
form?
17Problem 4 Using Two Points to Write an
Equation
- A) What is an equation in point-slope form of the
line containing the points (1, 4) and (-1, 1).
Then write the equation in slope-intercept form.
18Problem 4 Using Two Points to Write an
Equation
- B) What is an equation in point-slope form of the
line containing the points (7, 3) and (5, 1).
Then write the equation in slope-intercept form.
19Problem 4Got It?
- Write an equation in point-slope form of the line
containing the points (2, 5) and (-8, 4). Then
write the equation in slope-intercept form.
20HOMEWORK
- Textbook Page 318 319 16 21
- PAY ATTENTION TO THE DIRECTIONS!!!
21Problem 5 Using a Table to Write an
Equation
- A) The table shows the altitude of a hot-air
balloon during its linear descent. What equation
in slope-intercept form gives the balloons
altitude at any time? What do the slope and
y-intercept represent? -
-
22Problem 5 Using a Table to Write an
Equation
B) The table shows the number of gallons of water
y in a tank after x hours. The relationship is
linear. What is an equation in point-slope form
that models the data? What does the slope and
y-intercept represent?
23Problem 5Got It?
The table shows the amount of time Julio works
and his total wages. What equation in
slope-intercept form gives Julios wages at any
time? What do the slope and y-intercept
represent?
24HOMEWORK