Slopes & Equations
Coefficient Correlation
MISC
Random
Random
X & Y intercepts
Parallel & Perp lines
100
What is the equation in slope intercept form(y=mx+b) for 3x-5y=25 and identify the rate of change. Two answer for this question!
Equation: y=3/2x-5
Rate of change(slope): 3/2
100
What is the difference between association and causation
Association is having just a relationship between the two variables, and Causation requires one variable to cause the other to do something.
100
What are the steps to find the regression(r=) of a table in Desmos?
you will have to create a table and then click on the dots it will be under the equation
100
What is another word for X intercept of a graph?
ZERO
100
What is the difference between parallel and perpendicular lines?
parallel lines never touch, perpendicular lines cross at 90 degree angles
200
Which equation in slope-intercept form best represents the line that passes through these two points (2,5) and (-6,5) ( slope should be in fraction form)
y=1/8x+5.75
200
Association, causation or both?
Scenario: A rooster crowing and the sun rising every day
Association- there is a relationship rooster do crow at sunrise BUT the crowing does not CAUSE the sun to rise.
200
When the question is asking you to find the EQUIVALENT answer how would you use desmos?
Equivalent means the same so we need to MATCH the graph or table
200
Find the x and y intercepts of y=2x-4
x intercept: 2
y intercept: -4
200
What is the slopes for an equation that is parallel AND perpendicular to y=5x-8
Parallel slope: same slope: 5
Perpendicular: opposite sign, flipped fraction: -1/5
300
What is the equation that best represents this situation?
y=4x+20
300
What is the correlation (r=) and the type of correlation( strong/weak, positive/negative)
r=-0.9985
Strong Negative
300
if you are SOLVING an equation and there are VARIABLES on both sides how many boxes would you use in desmos and where would you find the answer?
2 boxes
you would find the answer where the two lines intersect(cross)
300
What are the x and y intercepts of x+2y=8
x intercept: 8
y intercept: 4
300
What is the equation of a line that passes through (2,8) and is parallel to line y=2x+1
y=2x+4
400
what is the equation of the line that passes through the point (5,-7) and has a slope of zero?
Y=-7
400
What is the equation AND approximation if a student were to have a test grade of 56
y=0.7x+11.4
homework grade would be: 64
400
What does ZERO of a graph mean?
X-Intercept
400
What is the equation of the line that passes through point (8,-9) and has a slope of zero?
y=-9
400
A graphed line passes through (-3,4) and (2,2). What is the SLOPE for a line that is perpendicular to the graphed line?
perpendicular slope would be: -5/2
500
Which equation represents the same relationship in slope-point form?
A. y−12=2(x−4)
B. y−6=12(x−4)
C. y−12=12(x−4)
D. y−4=12(x−12)
C. y−12=12(x−4)
500
What is the equation(round to hundredth) AND approximation of homework grade (round nearest whole number) if a student were to have a test grade of 89
y=0.91x−0.55
Homework grade would be: 89
500
If you want to create a graph on Desmos what format does the equation need to be in in order to work AND What are the steps to get it there if its in standard form (2x+3y=15)
Y=MX+B
first, move the x to the right side
then, divide by the number in front of Y
500
What is the slope and equation of a vertical and horizontal line that passes through point (-5,2)
VUX: undefined, x=-5
HOY: zero slope, y=2
500
What is an equation and the slope of the line that is perpendicular to the x axis?
Slope: undefined
equation: x=5(any number)