Solving by Elimination
r + s = -6
r - s = -10
x = 4y
2x + 3y = 22
The sum of two numbers is 104. Their difference is 68. What are the numbers?
What are 86 and 18?
A change in the position, shape, or size of a figure is called.
What is a transformation?
The line that intersects two or more lines at different points.
What is a transversal?
8a + 5b = 9
2a - 5b = -4
y = x - 2
3x - y = 16
A shopper bought 6 shirts and 8 hats for $700. A week later, at the same prices, he bought 9 shirts and 6 hats for $660. What was the cost of one shirt?
What is $30?
A transformation that moves every point of a figure the same distance and direction.
What is a translation?
The name of angles that are in the same spot along a transversal.
What are corresponding angles?
2x + 3y = 6
3x + 5y = 15
y = 3x - 1
7x + 2y = 37
The number of each type of ticket sold in the following situation: Tickets to a football game cost $5.oo if purchased before the day of the game. They cost $7.50 if purchased at the game. For a particular game, 600 tickets were sold and the receipts were $3500.
What is 400 advanced tickets, 200 game-day tickets?
Also known as a flip, a transformation that flips a figure over a line of __________.
What is a reflection?
Same-side interior angles have this relationship.
What is supplementary?
2a - 4b = 12
-8a + 16b = -48
3s - 2t = 4
t = 2s - 1
The dimensions of a rectangle whose perimeter is 78 inches, when the length of the rectangle is twice its width.
What is 26x13?
The transformation that turns a figure around a fixed point.
What is a rotation?
Alternate interior angles have this relationship.
What is congruent?
(1/3)x + (1/4)y = 10
(1/3)x - (1/2)y = 4
t + u = 12
t = (1/3)u
The amount of money each child received when Mr. Vogel left $25,000 divided between his son and daughter, with the daughter receiving $5000 less than the son.
What is $15,000 for the son and $10,000 for the daughter?
This transformation moves each point along the ray through the point, starting from a fixed center, and multiplies distances from the center by a common scale factor.
What is a dilation?
The relationship remote interior angles have with the exterior angle of a triangle.
The sum of the two remote interior angles is equal to the exterior angle of a triangle.