Vocabulary
This is what the x-variable and y-variable is considered...
What is the independent and the dependent variable?
AT&T charges $15 a month with free text messaging plus $0.20 per minute of call time.
What is y = .20x + 15
Does an x-axis and independent variable go at the bottom of a graph or on the side?
What is x-axis and independent variable go at the bottom of a graph?
True or False: Ratios can be presented as y:x, y to x, y/x
What is TRUE? There are three ways to show a ratio, and they all mean the same thing.
This is the slope-intercept formula...
What is y = mx + b?
Moe's Lawn Service charges $6 a lawn plus a $4 fee for gas.
What is y = 6x + 4
In order to make a table proportional... Do both sides throughout the whole table have to be proportional?
The equation for deep sea diver swims downwards 20 feet every minute.
What is y = -20x
True or False: proportional relationships are not a straight line.
What is false? Proportional relationships are linear.
What is a unit rate?
What is the amount per one?
Bill pays $4.00 an hour for parking fees plus an additional charge of $10.00 to enter the game.
What is y = 4x + 10
The ratio of y/x for each data point in the table grow at a constant rate reveal it is this type of relationship.
What is a proportional relationship?
Matt walked three-quarters of a mile in fifteen minutes. This was his approximate speed in miles per hour.
What is k = 1/3mph
(3/4)/15
True or False: "b" represents base in y = mx + b
What is false? The b represents the y-intercept, or where the graph crosses the y-axis when x=0
The origin is...
What is the center of a coordinate plane (0,0)?
The equation for Mia has $50 on a gift card to her favorite coffee shop and each time she visits the coffeeshop she spends $3.75 on her favorite drink.
What is y=-3.75x+50?
For a proportional relationship, this is how you find the rate of change using a table.....
What is the ratio of y/x
There was a blizzard in Toronto and snow was falling at a rate of 7 ½ inches per hour.
True or False: Do lines on a graph have to start at (0,0) to be proportional?
What is true?
Constant of proportionality, "K" is .....
What is the ratio of y/x?
The equation of Mountain World theme park charges visitors an entrance fee of $20 plus an additional $2 per each ticket for rides, games, and food.
What is y = 2x + 20
The slope of the line reveals that as x-values increase, y-values decrease.
What is a negative slope.
Jason worked for the summer (12 weeks) at an amusement park. He earned a regularly salary and made $2,964 over the summer. How much was he paid every month (4 weeks)?
What is $988
True or False: A vertical line has a slope that is undefined...
What is true?