Slope Intercept Form
Equations in Point-Slope
Parallel and Perpendicular
Scatter Plots and Lines of Best Fit
Inverse Linear Functions
100
What is the slope of the line y=3x+1?
m=3
100
What is the equation for point slope form form?
y-y1 = m(x-x1)
100
Two lines that make four 90 degree angles are called what?
Perpendicular lines.
100
If a graph is going downwards (decreasing) what is its correlation?
Negative Correlation
100
Find the inverse of (10,10).
(10,10)
200
Find the slope of a line with the points (1,2) and (6,12)
m=2
200
Write a point slope equation for a line that goes through (-2,1) and a slope of -6.
y-1 = -6(x+2)
200
Two lines that never touch are called...?
Parallel Lines
200
Find the slope of the coordinates (12,5) and (17,80).
m=15
200
Find the inverse of the function f(x) = 20x-5.
f-1(x) = x+5/20 or f-1(x) = x/20 + 1/4
300
Find the y-intercept of the line with the points (4,7) and (2,6).
b=5
300
Turn the point slope equation y-10 = 2(x-8) into standard form.
y-2x = -6
300
Is this line parallel or perpendicular? Why?
Neither. No right angles are made and the lines cross.
300
If the data is too random and has no connection, what correlation would the scatter plot have?
No correlation.
300
Find the inverses of (-30,4), (5,20), (-60,-180), and (50,-200).
(4,-30), (20,5), (-180,-60), and (-200, 50).
400
Write a slope-intercept equation for a line that has a slope of 3 and a y-intercept of 2.
y = 3x+2
400
Write the point slope equation y-11 = 3(x+4) into slope intercept form.
y = 3x + 23
400
Which two lines are perpendicular?
Line A and Line C
400
If a line starts at (0,100) and has a positive correlation, what is the y-intercept?
(0,100)
400
If the inverse function is f-1(x) = x+2/10, what is the original equation?
f(x) = 10x-2
500
What is the slope-intercept form of the graph?
y=-2x+3
500
Jack and Jill wanted to make a line using the points (3,-2) and with a slope of 1/4. What is the point slope form of the line?
y+2 = 1/4(x-3)
500
Two roads never merge and don't touch in any way. Bob says they're perpendicular and Billy says they're parallel. Who is right and why?
Billy because the two roads never meet.
500
Convert y-500 = 4(x-5) into slope intercept.
y = 4x+480
500
Why do negatives matter when you're inverting? Explain.
They don't! Inverse the function or coordinate just like you would for positives.