Topic 1A
Is .7525 a rational or irrational number?
Rational
Solve for X
8X + 3X = 77
X = 7
What is slope?
Rise over Run
What is a function?
When every input has exactly one output.
What type of triangle does the Pythagorean Theorem apply to?
Right Triangle
Is -25 a rational or irrational number?
Rational
Solve for x
-10x + 6X = 16
X = -4
What is the y intercept?
The point on the line where it crosses the y axis.
Is this a function?
10---2
5-----6
10----3
NO
What kind of transformation is a slide?
Translation
Is .26252624789... a rational or irrational number?
Irrational
Solve for X
9x - 3 = 42
X = 5
What is the slope and y intercept in: y= 3x + 5
Slope= 3
y intercept= 5
Is this a function?
8---5
7----5
2----5
yes
What kind of transformation is a flip?
Reflection
Why is pi irrational?
Because it is a decimal that never ends.
12X - 10 = -34
X = -2
What kind of line is there when the slope is 0?
A horizontal line
What does it mean if a function is linear?
It forms a straight line and has a constant rate of change.
What kind of transformation is a turn?
Rotation
Is the square root of 20 a rational or irrational number? and why?
Irrational number because it is not a perfect square.
6x + 4 = 4x + 10
X = 3
What kind of line is there when the slope is undefined?
A vertical line.
Is this function linear or nonlinear?
x y
1 2
2 4
3 6
yes
The Pythagorean theorem is A2 + B2 = C2
What are A and B called?What is C called?
Legs
Hypotenuse