Slope-Intercept Form
Scatter Plots
Writing Equations in Slope-Intercept Form
Write the Equation in Point-Slope Form
Challenge
100
The form of the equation shown below: y=-4x+2
What is slope-intercept form?
100
How do you know if a scatter plot has a positive correlation?
The points are moving up from left to right.
100
In slope-intercept form, the equation of the line that has a slope of -5 and a y-intercept of 14.
What is y=-5x+14 ?
100
In point-slope form, the equation of the line that has a slope of -2 and passes through the point (3,24).
What is y-24=-2(x-3) ?
100
The slope of a line that is perpendicular to y = 1/5x + 3.
What is -5 ?
200
'm' stands for this in slope-intercept form.
What is the slope of the line?
200
How do you know if a scatter plot has a negative correlation?
The points are going down left to right.
200
In slope-intercept form, the equation of the line with a slope of 1 and a y-intercept of 2.
What is y=x+2 ?
200
In point-slope form, the equation of the line that has a slope of (-1/3) and passes through the point (-14,-21).
What is y+21=(-1/3)(x+14) ?
200
In slope-intercept form, the equation of the line that passes through the points (-1,-2) and (-5,-6).
What is y=x-1 ?
300
'b' stands for this in slope-intercept form.
What is the y-intercept of the line?
300
How do you know if a scatterplot has no correlation?
There no pattern. The dots are spread across the graph.
300
In slope-intercept form, the equation of the graph that has a slope of 2/5 and a y-intercept of -1/5.
What is y=(2/5)x-(1/5) ?
300
In point-slope form, the equation of the line that has a slope of 2 and goes through the point (1, 2).
What is y-2=2(x-1) ?
300
Three equations to represent three lines parallel to the line y=(-2/3)x+10.
What is any equation with a slope of (-2/3) ? (Any y-intercept or other point used is fine; the only thing that matters is that the slope is (-2/3).)
400
The equation below in slope-intercept form: 4x+2y=8
What is y=-2x+4 ?
400
How do you find a line of best fit?
You draw a line in the middle of the dots where the same number of dots are on each side of the line.
400
In slope-intercept form, the equation of the line that passes through the points (4,4) and (5,-2).
What is y=-6x+28 ?
400
In point-slope form, the equation of the line that is parallel to the line y=2x+4 and passes through the point (-3,-1).
What is y+1=2(x+3) ?
400
In standard form, the equation that is parallel to the line y=(-1/2)x+2 and passes through the point (2,4).
What is x+2y=10 ?
500
The equation below in slope-intercept form: y-6=-10(x+3)
What is y=-10x - 24 ?
500
How do you find an outlier on a scatterplot?
Look for points that are not consistent with the rest of the points.
500
In slope-intercept form, the equation of the line that is parallel to the line y=-4x+10 and passes through the point (2,5).
What is y=-4x+13 ?
500
In point-slope form, the equation of the line that is parallel to y-2=-5(x-3) and has an x-intercept of 4.
What is y-0=-5(x-4) ? (There are other correct answers...make sure your slope is -5 and that your point falls on the correct line!)
500
Turn 0.4 (repeating) into a fraction in lowest terms.
What is 4/9?
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