Transformations
A dilation changes the ______ of the shape by _________ the shape or ___________ the shape.
size, reducing, enlarging
Solve for y:
7y + 6 = 55
y = 7
Identify the slope and y-intercept in the equation below: y=-3x+9
slope(m): -3
y-intercept(b): 9
Triangle ABC has coordinates of A(0,3) B(3,6) C(6,9).
Find A'B'C' after a dilation with a scale factor of 1/3
A'(0,1) B'(1,2) C'(2,3)
Supplementary angles equal ____ degrees and complementary angles equal ____ degrees.
supplementary= 180 degrees complementary= 90 degrees
What is the complement of an angle that measures 71 degrees?
19 degrees
A table of ordered pairs when graphed form a vertical line, what type of slope do they form?
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What is the transformation that causes the pupil in your eye to change with different levels of light?
Dilation
Triangle ABC with coordinates A(-2,5)B(-4,9)C(-6,5) reflected over the y-axis. Find the coordinates of A'B'C' after the reflection.
A'(2,5) B'(4,9) C'(6,5)
Vertical angles are directly _____ from one another and alternate interior angles are _________ across from one another.
vertical: directly across
alternate interior: diagonally across
Solve to find your x and y values. Put your solution in an ordered pair (x, y)
2x-3y=-2 4x+y=24
(5,4)
What is the slope, per minute, of a line that goes up 54 beats every 6 minutes?
slope (m)=9 beats per 1 minutes
Angle pairs are formed when multiple parallel lines are cut by a __________.
transversal
When an object is ______ over an axis, it end up on the other side of the coordinate plane.
reflected
What angle pairs are formed by supplementary angles?
corresponding angles
Dear Diary....Lennie found a sweater that had an original price of $175 dollars. He had a coupon for 75% off. After the sale price, 9% tax was added. How much money did Lennie pay for his new sweater?
Lennie paid $47.69 for his new sweater.
Love....Lennie
Write an equation in slope-intercept form with a slope of -4/3 and a y-intercept of 6.
y=-4/3x+6
Reflection, Translation, Rotation are all ____________ transformations.
RIGID Transformations
Point A:(4,6) underwent a rigid transformation and ended at A'(6,-4). Which transformation has occurred? Be precise.
rotation by 270 degrees clockwise, or 90 degrees counterclockwise
Angle 4 is vertical to angle 5 and angle 6 is supplementary to angle 4. What is the measure of angle 6 if angle 4 is equal to 73 degrees.
angle 6 = 107 degrees
Simplify the expression if y = 8:
2(y3 - 212) + (12 + 22 + 32)2
338
What is the slope of a horizontal line?
zero
A. What is the equation that represents the graph of a line in slope-intercept form?
B. Write the representation for each variable in your equation.
y=mx + b