Unit 1 Flashcards
(13 cards)
0
Q
What is the equation of a line?
A
y=mx+b
1
Q
What are the three methods to finding a POI?
A
Graphing
Substitution
Elimination
2
Q
How do you find slope?
A
m= y2-y1/x2-x1
3
Q
Parallel lines have what the same?
A
Slope
4
Q
What is the slope of a horizontal line?
A
0
Ex. Y=2
5
Q
What is the slope of a vertical line?
A
Undefined slope
Ex. x=6
6
Q
Distance formula
A
D=square root x2-x1 squared + y2-y1 squared
7
Q
Equation of circle?
A
X squared + y squared = r squared
8
Q
Circumference of circle?
A
Pie d or 2 pie r
9
Q
Area of circle?
A
Pie r squared
10
Q
How do you find an x intercept in y=mx+b?
A
Set y=0
11
Q
What is the axis of symmetry?
A
x=_
x value of vertex
12
Q
What is the optimal value?
A
y=_
y value of vertex