Slope
Slope Intercept Form
Point-Slope Form
Scatter Plots
Miscellaneous
100
What is the slope of a horizontal line?
m=0
100
What is the equation for slope intercept form?
y=mx+b
100
DOUBLE POINTS!
What is the equation for point-slope form?
y-y1 = m(x-x1)
100
DOUBLE POINTS!
What is another name for a "line of best fit" on a graph.
Trendline
100
Fill in the blank.
Parallel lines have the ________ slope. Perpendicular lines have ______________ _____________ slopes.
same slope and opposite reciprocal slopes
200
What is the formula for slope?
m = y2 - y1 / x2 - x1
200
Determine the equation of the line graphed:
y=-2/3x+5
200
Solve the equation for y:
y-3=1/2(x-12)
y=1/2x-3
200
Describe the correlation as positive, negative, or none:
The amount of snow that falls and the chance of a snow day
positive
200
Are the lines parallel, prep, or neither?
y-2x=10
6+y=2x
Parallel
300
DOUBLE POINTS!
Define slope.
rise/run or a rate of change
300
Each week, Kate pays her dog walker $15 per hour of work and spends $60 on dog food. Write a linear equation to represent, y, how much money Kate spends each week for x hours of dog walking.
y=15x+60
300
Write the equation of the line that is parallel to y=-x-5 and passing trough (3,-1). Solve your equation for y.
y=-x+2
300
What is the r-value associated with no correlation?
r=0
300
Solve the equation for y:
2x+5y=-15
y=-3-2/5x
400
Find the slope between the two points (0,5) and (6,1).
m=-2/3
400
DOUBLE POINTS!
Write the equation of a line with slope -2 and y-intercept 0.
y=-2x
400
Write the equation of the line that is perpendicular to y=-x+2 and passing trough (3,-1). Solve your equation for y.
y=x-4?
400
What is the r-value associated with a perfectly strong negative correlation?
r=-1
400
DOUBLE POINTS!
Determine the x & y intercepts of 3x - y = -12
x=-4 & y=12
500
Find the slope between the two points (2,4) and (-1,-4).
m=8/3
500
Jim is buying roses for his girlfriend and has a $5-off coupon to spend at the flower shop. Roses cost $1.50 each. Write an equation using function notation to represent this situation.
f(x)=1.50x-5
500
Determine the equation of the line through (0,1) and (2,5).
y=2x+1
500
Describe the correlation as positive, negative, or none:
Number of years and the value of your car
negative
500
What does the line x=-3 look like on a graph?
Vertical line at x=-3