Parts of the equation
Slope dude!
What is the slope?
Equation
Proportional vs Non Proportional
100
This is the m in the equation y=mx+b
What is slope?
100
This type of slope goes UP from left to right?
What is Positive?
100
The slope in this equation y = -3x - 2
-3
100
This is the slope-intercept equation when slope = 3 and the y-intercept = 2
y = 3x + 2
100
Proportional or non proportional? EXPLAIN!
Proportional b/c straight line through origin.
200
This is the meaning of b in y=mx+b?
What is the y-intercept?
200
This type of slope is vertical.
What is undefined?
200
Identify the slope: y = -5/2 x - 3/4
-5/2
200
The slope-intercept equation:
slope = 1/4
y-intercept = -6
y = 1/4 x - 6
200
Proportional or Not proportional? EXPLAIN.
y= 2x + 20
non proportional because there is a y-intercept value that is not 0
300
This is the meaning of x in y=mx+b?
What is the independent variable?
300
This type of slope travels downward from left to right.
What is negative?
300
The cost for Test Prep Center A is $20 times the number of hours that you attend.
What is the slope?
$20
300
What is the equation of the line?
y= 1/2x + 3
300
Proportional or not proportional? EXPLAIN.
The cost for Test Prep Center A is $20 times the number of hours that you attend.
Proportional
because at 0 hours you pay $0 and there's a constant rate.
400
This is the meaning of y in y=mx+b?
What is the dependent variable?
400
What is zero slope?
400
The cost for Test Prep Center B is $25 an hour, but you have a $100 coupon that you can use to reduce the cost.
What is the slope?
$25
400
The slope of the graph containing the points (5, 7) and (3, 6)
1/2
400
Proportional or not proportional? EXPLAIN.
The cost for Test Prep Center B is $25 an hour, but you have a $100 coupon that you can use to reduce the cost.
Not proportional
b/c even though there is a constant rate of $25/hr, the coupon means you don't start at $0 at 0 hours.
500
This is the equation of the line shown.
y=-3x-2
500
The slope dude always goes ____ to _____.
Left to Right
500
The entrance fee for Mountain World theme park is $50. Visitors purchase additional $2 tickets for rides, games, and food.
What is the slope?
$50
500
The slope of the graph containing the points (2, 5) and (8, 1)
-2/3
500
This year, Andrea celebrated her 12th birthday, and her brother Carlos celebrated his 6th birthday. Andrea noted that she was now twice as old as her brother was. Is the relationship between their ages proportional? Explain how you know.
Not proportional
[Explanation may vary]