Point/Slope
2 points
parallel/ perpendicular
Inverse Functions
Scatter plots
100
Larry has $300. He saves $25 a week. Write an equation.
y = 25x + 300
100
Write the equation of the line with points (0, -4) and (5, -4)
y = -4
100
Write an equation for the line parallel to y = x+4 and goes thru (3, -2)
y = x-5
100
Find the inverse of {(3,4), (6,1), (2,7)}
{(4,3), (1,6),(7,2)}
100
The correlation coefficient is 0.234.
Is that a weak, moderate, or strong correlation?
weak
200
Write the equation of the line with a slope of -3/4 and point (6,4).
y = -3/4x + 17/2
200
Write the equation of the line with points (-2, -3) and (4,5).
y = 4/3x - 1/3
200
Write the equation of the line perpendicular to y = x+4 and goes thru (3, -2).
y = -x +1
200
Find the inverse of f(x) = 8x-5
f-1(x) = 1/8x + 5/8
200
Correlation: Positive, Negative, or None?
Positive
300
Write the equation of the line that has a slope of -3 and a point (-5, 4)
y = -3x - 11
300
Write the equation of a line with points (5, -2) and (7, -1).
y = 1/2x - 9/2
300
Are the lines parallel, perpendicular, or neither?
y = -2x
2x + y = 3
parallel
300
Find the inverse of f(x) = 3/4x + 9
f-1(x) = 4/3x - 12
300
Correlation: Positive, Negative, or None?
Negative
400
Write the equation of the line with a slope of 5 and an x intercept of 2.
y = 5x -10
400
7 Lessons cost $82 and 11 Lessons cost $122.
Write an equation.
y = 10x + 12
400
Are the lines parallel, perpendicular, or neither?
y = 4x + 3
4x + y = 3
Neither
400
Find the inverse of f(x) = (3x+5)/4
f-1(x) = (4x-5)/3
400
Use the 2 points (1, 226.9) and (4, 275.2) to write the equation for the line of fit.
y = 16.1x + 210.8
500
Write the equation of a line with a slope of 1/2 and the point (4,2).
y = 1/2x
500
Write the equation of a line with an x-intercept of 6 and a y-intercept of 3.
y = -1/2x+3
500
Write the equation of the line perpendicular to y = -1/2x +6 and thru (-4, 2).
y = 2x + 10