8th Grade Geometry
Sliding a figure down 2 units and right 3 units is called a....
What is translation
Solve: -3(x + 5) = 2x - 5
y = mx + b is called...
What is the slope-intercept form of a linear equation?
Slope of x=5
What is undefined?
The distance from zero on a number line.
What is absolute value?
Flipping a figure over the y-axis is called...
What is reflection?
Variable
a symbol that represents a number that we don't know yet
y-intercept of y=-8+3x
What is -8
True or false: dilating a shape by a scale factor of 1/2 creates a congruent shape.
FALSE (similar)
Turning a figure 90 degrees clockwise about the origin
What is rotation?
A fixed value; one that does not change
Find the slope of the line passing through the following points: (-4, 0) and (-3, -2).
What is m=-2
Slope of y = -3/4x + 6
What is m=-3/4
Whole numbers and their opposites are called...
What are integers?
The collective term for translations, reflections, and rotations
What is transformations?
Solve: 3x+2 = 3x+6
no solution
Equation for slope
What is m = (y2 - y1)/(x2 - x1)
y-intercept of y=-2
What is -2
What is a circle's favorite food?
PI!
If a figure is in the first quadrant and you rotate it 180 degrees clockwise around the origin, what quadrant will it be in now?
What is the 3rd quadrant?
Solve: 3(x+2)+5=4x+2(5)
x=1
Is it a positive or negative slope?
What is -1/2; negative.
equation of a line with a slope of 2/3 and a y-intercept of -5.
What is y = 2/3x - 5 or y = -5 + 2/3x
The only number in the English language that is spelled with same number of letters as the number itself...
What is 4 (four)?