Slopes
Find the slope of the line passing through (2,3) and (4,7).
2
What is the solution to a system of equations?
The point where both equations intersect.
What is the formula for circumphrence?
C=2πr
State the Pythagorean Theorem.
a2+b2=c2
Find the slope of the line passing through
(3,5) and (7,13)
2
What does the slppe of 0 mean?
A horizontal line
y = x+2
y = 6
(4,6)
Find the circumference of a circle with radius 6.
12π
Find the hypotenuse.
Legs: 3,4
5
A circle has a radius of 9.
Find:
Diameter = 18
Circumference = 18π
Area = 81π
Write the equation of a line with a slope of 3 and y-intercept -2.
y = 3x-2
Solve
x+y = 10
x-y = 2
(6,4)
Find the area of a circle with radius 5.
25π
Find the missing leg.
Hypotenuse =13
Leg=5
12
A right triangle has legs of 9 and 12.
Find:
(where θ\thetaθ is opposite the side of length 9)
Hypotenuse = 15
sinθ = 3/5
cosθ = 4/5
Find the equation through (2,5) and (6,13).
y = 2x+1
Which method would you use?
2x+y=7
4x-y=5
Elimination
A circle has diameter 20.
Find the radius and circumference.
Radius = 10
Circumference = 20π
Find sinθ
Opp=8
Hyp=17
8/17
Solve the system:
x+y=12
2x-2y=4
(7,5)
Are the following lines parallel, perpindicular, or neither?
y = 2x+1
y = -1/2x+5
Perpendicular
A movie ticket costs $12 for adults and $8 for students. Twenty tickets are sold for $200. How many adult tickets were sold?
10
A circular garden has area 64π, find the radius.
8
Find tanθ
Adj=8
Opp=15
15/8
A circular park has a diameter of 24 feet.
A sidewalk goes straight across the center.
Find:
Radius = 12
Circumference = 24π
Area = 144π