Graphing Equations in Slope-Intercept Form

Writing Equations in Slope-Intercept Form

Writing Equations in Point-Slope or Standard Form

Parallel and Perpendicular Lines

Scatter Plots and Lines of Fit
100

Write an equation of a line in slope-intercept form with a slope of 3 and a y-intercept of -4.

What is y=3x - 4

100

Write an equation of the line that passes through the point and has the given slope. (7, 1), slope 8

What is y=8x-55

100

 Write an equation of the line in point-slope form. (-2, 11), m=4/3

What is y - 11= 4/3(x + 2)

100
What is special about the slope of two parallel lines?
What is same slope
100

What is a trend line?

What is a line that is close to all the data points that can model the trend of the data

200

 Graph. y = 8x - 7

What is y-int=-7, slope up 8 right 1

200

 Write an equation of the line that passes through the point and has the given slope. (2, 6), slope 2

What is y = 2x+2

200

Write in standard form. y - 10 = 2(x - 8)

What is 2x - y = 6

or -2x + y = -6

200
What is special about the slope of two perpendicular lines?
What is opposite reciprocal
200

 Use the points (2, 21.75) and (4, 21) to write the slope-intercept form of an equation for the line of fit.

What is y = -0.375x + 22.5

300

Graph. 5x + 2y = 8

What is y = -5/2 + 4. y-int= 4. slope = down 5, right 2

300

Write an equation of the line that passes through the pair of points. (-2, 5), (5, -2)

What is y= -x +3

300
page 234 #25 Write in standard form. 2y + 3 = -1/3(x - 2)
What is x + 6y = -7
300

Write an equation in slope-intercept form for the line that passes through the given point and is parallel to the graph of the given equation. (-2, 3), y = -3/4 x+ 4

What is y = -3/4x + 3/2

300

Make a scatter plot. Years- 1650, 1850, 1930, 1975, 2004 Populations (in millions)- 500, 1000, 2000, 4000, 6400.


400

page 259, #38. Write an equation in slope-intercept form for the graph of line a

What is y = -5/2x - 6

400

 Write an equation of the line that passes through the pair of points. (-2, -4), (2, 4)

What is y=2x

400

What is the slope and y intercept of y + 5 = -6(x +7)

What is slope -6 and y int =-47

400

 Write an equation in slope-intercept form for the line that passes through the given point and is perpendicular to the graph of the given equation. 

(-4, 5), y = 1/3x + 6

What is y = -3x - 7

400

Write the slope-intercept form of the equation for the line of fit using the points (1850, 1000) and (2004, 6400). (From the info in 300)

What is y = 35.1x - 63,870

500

Tution at Chicago State University is $157 per credit hour. Fees cost $218 per year. Write an equation in slope-intercept form for the tuition T for c credit hours.

What is T = 157c + 218

500

The equation of the line with slope of 0 and goes through the point (3, 5)

What is y=5

500

 Write in slope-intercept form. y + 3 = -1/3(2x + 6)

What is y = -2/3x - 5

500

Line AB contains the points (4, 1) and (3, 6). Line CD contains the points (2, -1) and (1, 4). Are these two lines parallel? and explain, how do you know?

What is yes, the slopes of the lines are both -5. Lines with the same slopes are parallel

500

Use the equation for the line of fit in 400 to predict the world's population in 2025.

What is 7207.5 million