Adding and Subtracting negative numbers
7+(-3)
4
x+5=12
Would this set of points represent a function?
(1,2)
(2,7)
(3,4)
Yes, each input has exactly one output.
What is the slope of the equation y= 2x+3
m=2
If two angles make a straight line, they are called...
a linear pair or supplementary
-8-(-5)
-3
3x=18
Does a vertical line represent a function?
No, it would not pass the vertical line test.
What is the slope of the line that passes through (1,2) and (3,6)
m=2
Vertical angles are always...
congruent
4-(-7)+(-2)
9
2x+3=11
x=4
Would this set of points represent a function?
(2,5)
(2,7)
(3,9)
No, the input 2 has two outputs, 5 and 7.
m=2/5
If two angles sum to 90 degrees, they are called
complementary angles
-12+5-(-3)
-4
5(x-2)=20
x=6
What must be true about an equation for it to not represent a function?
There must not be a y or an output in the equation.
What is the slope of the following equation?
4x+2y=10
m=-2
If you have two supplementary angles, and one has the measurement of 97 degrees, what is the measurement of the other?
83 degrees.
-15+(-9)-(-14)+3
-7
(x/4)-2=3
x=20
The graph of a function has the following points, (2,3), (4,5), (2,6), and (7,8). Is it a function?
No, the input 2 has two outputs, 3 and 6.
A line passes through (0,0) and a slope of 2. What is the equation for this line?
y=2x+0
A triangles has two angles measures of 92 and 30. What is the measurement of the third angle?
58 degrees