-Transformations & Angles
What is it called when a shape flips over a line?
A reflection
What is the slope of y = 3x + 1?
Slope is 3
What is a function?
A function is when each input has only one output
What is a scatter plot?
A graph with points that show how two things are related
What is 193²?
37249
How many degrees are in a triangle?
180 degrees
What’s the y-intercept of y = –2x + 4?
y-intercept is 4
What’s the volume of a cube with side 3?
Volume = 3³ = 27
What does a positive trend look like?
It goes up from left to right
Turn 0.75 into a fraction.
3/4
What is a dilation?
A dilation makes a shape bigger or smaller but keeps the same shape
Define slope
The change in y over the change in x
Is this a function? {(1,2), (2,3), (1,4)}
No, 1 has two outputs
What kind of data goes in a two-way table?
Categorical data (like favorite food vs age group)
Solve: x² + 4² = 25
x² + 16 = 25 → x² = 9 → x = 3
What is AIA in geometry?
AIA = Alternate Interior Angles
Solve 2x + 1 = 7.
x = 3
What’s the rule for: input × 4 + 2 = output
Rule: f(x) = 4x + 2
What is an outlier?
A data point that doesn't fit with the other points in the data. It's usually really far away.
Find the hypotenuse if legs are 5 and 12.
c² = a = 5² + b = 12² = 25 + 144 = 169 → c = 13
If a shape moves 3 right and 2 up, what kind of transformation is that?
It’s a translation (moved right and up)
Solve this system: y = x + 1 and y = –x + 5.
They meet at (2, 3), so that’s the solution
Find the volume of a cylinder with radius 2 and height 6.
Volume = π × 2² × 6 = 24π ≈ 75.4
What does it mean when there's no correlation?
No pattern, the dots are all over the place
What is 2⁴ ÷ 2²?
2⁴ ÷ 2² = 2² = 4