Slope-Intercept Form
Piecewise Functions
Writing Equations in Slope-Intercept Form
Write the Equation in Point-Slope Form
Line of Best Fit
100
Write an equation to represent a line parallel to the line:
y=(-2/3)x+10.
What is any equation with a slope of -2/3?
100
What is the equation of the vertical line passing through the point (-3, 4)?
x = -3
100
In point-slope form, what is the equation of the line that has a slope of -2 and passes through the point (3,24).
y-24=-2(x-3)
100
Describe how to find equation of a line of best fit of a scatter plot by hand.
Draw a line that follows the trend of the data and close to most data points. Choose two points on the line to calculate an equation.
200
Rewrite this equation in slope-intercept form
3x + 2y = 8
What is y = -3/2 x + 4
200
In slope-intercept form, what is the equation of the graph (red line) shown below:
what is y = -2/3x + 1?
200
In point-slope form, what is the equation of the line that has a slope of (-1/3) and passes through the point (-14,-21).
y+21=(-1/3)(x+14)
200
Verbally explain how to find linear regression on a NumWorks.
300
Write an equation of a line that is perpendicular to
y = -5x + 3
and passes through the point (0, -2)
What is y = 1/5x -2
300
Tell a story about this graph 
your story must mention domain and slopes of each segment.
300
In slope-intercept form, what is the equation of the line that passes through (0,-3) & (2,1):
y=2x-3
300
In point-slope form,what is the equation of the line shown below:
y-1=-2(x-2) (There are other many correct answers...make sure the point you used for (x1,y1) is on the line and that your slope is -2)
300
If the x - values of a table of data represent years since 1980. What x value represents the year 1992?
What is 12?
400
Write the equation below in slope-intercept form:
4x - 2y=8
y=2x - 4
400
In slope-intercept form, what is the equation of the line that passes through the points (4,4) and (5,-2).
y=-6x+28
400
In point-slope form,what is the equation of the line that is parallel to the line y=2x+4 and passes through the point (-3,-1).
y+1=2(x+3)
400
A line of best fit of the number (in thousands) of cars sold each year for x years after 2014 is y = -33.5x +160. What does the 160 mean? How many cars would you predict be sold in year 2018?
about 160, 000 cars sold in 2014.
about 26,000 cars sold in 2018.
500
Write the equation below in slope-intercept form:
y-6=-10(x+3)
y=-10x - 24
500
In slope-intercept form, what is the equation of the line that is parallel to the line y=-4x+10 and passes through the point (2,5).
y=-4x+13
500
In point-slope form, what is the equation of the line that is perpendicular to
y-2=-5(x-3) and has an x-intercept of 4.
What is y-0=1/5(x-4) ?
500
A line of best fit of the number (in thousands) of cars sold each year for x years after 2014 is y = -33.5x +160. What does -33.5 mean?
Every year since 2014, the number of cars sold decreases by about 33, 500.