vocabulary
What is an independent variable?
a variable that does not depend on another variable or other variables for its value.
Use the equation y = x + 20 and find the missing coordinate.
(3, __)
(3, 23)
Xavier has $50 that he has saved from his birthday. He also receives an allowance of $20 each week. Let w equal the number of weeks and s equal the total amount saved in dollars.
What would the equation be?
s = 20w + 50
or
20w + 50 = s
Xavier has $50 that he has saved from his birthday. He also receives an allowance of $20 each week. Let w equal the number of weeks and s equal the total amount saved in dollars.
The number of weeks or w
Emily earns money by babysitting. She will charge her clients by the hour. Let d = the money earned in dollars and let h = the number of hours spent babysitting
d= the money earned in dollars
What is a dependent variable?
a variable that depends on another variable or variables for its value.
Use the equation y = 5x and find the missing coordinate.
(3, __)
(3, 15)
Donald drives at a constant rate of 35 miles per hour
Let t = the time in minutes and d = the distance in miles
d = 35t
The temperature of an oven increases 12 degrees Fahrenheit until it reaches the desired temperature. Let t = time in minutes and e = the temperature in Fahrenheit.
the time in minutes or t
Taylor and Zoey are at the home improvement store to purchase some decoration items for their backyard. Let t = the wait time in minutes and p = the number of people in the line to check out.
the wait time in minutes is dependent
What is an expression?
one or a group of terms and may include variables, constants, operators and grouping symbols. NO EQUAL SIGN
Use the equation y = 3x
(__, 15)
(5, 15)
Lincoln and Sophie are creating a flower garden in their backyard. Sophie can plant twice as many flower plants than Lincoln. Together they planted 60 flowers. Create an equation for this.
2L + L = 60
Oliva is traveling in a car at the constant rate of 60 miles per hour. Let t = time in hours and d = distance traveled.
t or the time in hours
Bern is painting his outdoor gazebo. Let the surface area of the walls in the gazebo = a and the amount of paint used = p
the amount of paint used p
What is an equation?
a mathematical statement containing an equals sign, to show that two expressions are equal.
Use the equation y = x + 16
(14, __)
(14, 30)
The home improvement store is selling lawn chairs for $5.00 per lawn chair. Let L = the amount of lawn chair and c = the total cost in dollars. Create an equation to represent this.
c = 5L
Jessica sells candy to raise money for her cross country team. Let c = the number of candy bars and m = the total amount of money in dollars.
the number of candy bars or c
Georgina loves to drink coffee. For every ounce of coffee she purchases at the coffee shop costs $0.50. Let o = the amount of coffee in ounces and c = the total cost of the coffee in dollars.
the cost in dollars or c
What is an inequality?
an inequality occurs when things are not equal.
• there are four types of inequality:
a>b … a is greater than b
a<b … a is less than b
a≥b … a is greater than or equal to b
a≤ba … a is less than or equal to b
Use the equation y = 12 + x
(__ , 27)
(15, 27)
One 25 quart bag of potting soil is sold for $10. Let s = the amount of potting soil bags in quarts and c = the total cost in dollars. Create an equation
c = 10s
Mary spends 30 minutes talking on the phone every day with her sister. Let t = the time in minutes and d = the amount of days she talks on the phone
the amount of days or d
Isabella love to read. Let p = the number of pages she reads and t = the time spent on reading in minutes
The number of pages read or p