Unit 1
What is a translation?
Moving a shape up, down, left, or right.
What is a coordinate pair?
What is a proportional relationship?
A relationship between two variables that states as one variable changes, increase or decrease, the other will do the same at a constant rate.
How many solutions does a system have?
2
Does y = x - 12 have the solution (16,4)?
Yes
What is a reflection?
Mirror image of a shape.
What does it mean to draw a dilation with a scale factor of 2.
Multiply each coordinate pair by 2.
What makes a graph proportional?
The line goes through 0,0 and it is a straight line.
What are the 2 methods to solving systems that we learned this year?
Substitution and elimination
What is the formula for volume of a cylinder?
v = pi r2 h
What is a dilation?
Transformation that changes the size of a figure.
What is the formula for the slope of a line?
y2 - y1 / x2 - x1
What is a linear relationship?
A straight-line relationship between two variables.
What does x equal in the following equation: 26/x = 13
x = 2
What is the formula for volume of a cone?
v = pi r2 h / 3
What is a rotation?
When an object is turned clockwise or counter clockwise.
What is the difference between a scalene and an isosceles triangle?
Scalene triangles have 0 sides alike and isosceles triangles have 2 sides alike.
Which term is the y intercept in the formula: y = mx + b.
B
Combine like terms in the following expression: 3x + 2x - 5y + y
5x - 4y
What is the formula for volume of a sphere?
v = 4/3 pi r3
What is a congruent shape?
When a shape has the same height and size.
Select three true statements about dilations.
a. Dilations always increase the length of line segments.
b. Dilations take perpendicular lines to perpendicular lines.
c. Dilations of an angle are congruent to the original angle.
d. Dilations increase the measure of angles.
e. Dilations of a triangle are congruent to the original triangle.
f. Dilations of a triangle are similar to the original triangle.
Unit rate
What is another way to write 3(x - 2)?
A cone and cylinder have the same height and their bases are congruent circles. If the volume of the cylinder is 120 in3, what is the volume of the cone?
40