Simplify Expressions
simplify 14x + 5x
19x
Find the midpoint of A(1, -3) and B(4, 5)
(2.5, 1)
What is a right angle?
An angle that measures 90 degrees
What are intersecting lines?
two or more lines that collide
Solve 3y+2=11
y=3
simplify 3x + 2a - 4x
-x + 2a
(1.5, 2.5)
What angle is a straight line at?
180 degree angle
A vertex is what?
A common end point to two or more lines
Solve 1/4x-2=3
x=20
simplify 3x + 2y - 2x + 6
x + 2y + 6
Find the midpoint of A(1, 4) and B(5, 6)
An acute angle
What are crossroads?
When two straight lines meet at a common end point
Solve 3x+5x+4-x+7=88
x=11
simplify -7ab + 6b - 3ab - 4b - 3ab
2b - 13ab
Find the midpoint of (5, 8) and (-5, -6)
(0, 1)
What is 360 degrees?
A circle
Are parallel lines and intersecting lines different?
yes, parallel lines never cross eachother
Solve 6x+5=10+5x
x=5
simplify 4x^3 - 2x^2 + 5x^3 + 2x - 4x^2 - 6x
9x^3 - 6x^2 - 4x
Find the midpoint of (2/3, 1/4) and (11/6, 7/9)
(15/12, 37/72)
What is a reflex angle?
An angle over 180 and under 360 degrees
How many common points do two intersecting lines have?
one common point
5(3h-9)-12=12-7(h-9)
h=6