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Writing Equations
Linear?
Solving Equations
Vocabulary
Word Problems
100

The formula for finding the slope of any line.

(y1-y2)/(x1-x2) or change in y over change in x or rise divided by run?

100

y=45-3x

yes

100
The point (3,14) is a solution of the line y=-6x+4.
What is no? The point (3,-14) is on the line.
100
The point where the x and y axis intersect on a coordinate grid.
What is the origin?
100
The rate at which a airplane is traveling in the equation d=450t, with d representing miles and t representing hours.
What is 450 miles per hour?
200

The equation that describes the cost, "c", to buy "n" number of video games for $50 each and purchase the game system for $350.

c=50n+350?

200

y=7/x+38

No

200
The solution of the equation y=-8x+24 when x=4.5.
What is y=-12?
200
A relationship where there is a constant rate of change between two variables.
What is a linear relationship?
200
The science club is selling puzzles to raise money. The supplier charges a one-time fee of $55 for each order and $10 for each puzzle. The amount of money spent if they need to buy 24 puzzles.
What is $295?
300

The equation of this table: x 2 20 22 31 y 30 120 130 175

y=5x+20?

300

This table: x 0 5 10 15 20 y -9 -20 -31 -42 -53

yes

300
The solution of the equation y=6x-19 when y=23.
What is x=7?
300
A number that is multiplied by a variable.
What is a coefficient?
300
Johnny needs 1000 tomatoes to win a contest. His plants produce 115 each week. He already has 55 tomatoes. The amount of time needed to have at least 1000 tomatoes.
What is 9 weeks? (8.21 weeks also acceptable)
400

The y-intercept of this line: x 7 10 13 16 19 y 52 44.5 37 29.5 22

69.5

400
A line that goes through the points (6,18) and (8,24) and has a y-intercept of 2.
What is no? Its y-intercept is 0.
400
The value of x if: 13x-5=6x+30
What is 5?
400
The point where x and y are the same values for two equations involving the same variables.
What is a point of intersection?
400
A video rental store has two plans... 1. Members pay a yearly $20 membership fee and then $2 per movie. 2. Nonmembers pay $4.50 per movie. The number of movies rented each year to make buying the membership a good idea.
What is 8 movies?
500

The equation of a line that passes through the points: (-2,-10) and (8,25) and has a y intercept of -3

y=3.5x-3

500
The points (2,2), (10,22), (20,42), and (30,62).
What is no?
500
The point where the equations y=20x+70 and y=12x+110 intersect.
What is (5,170)?
500
A number that is not multiplied by a variable, but is added/subtracted in an equation.
What is a constant term?
500
The equation and solution for the following situation: The difference between 50 and 3 times a number, n, is 17.
What is 50-3n=17 and n=11 OR 3n-50=17 and n=22.333