Linear Equations
A symbol usually a letter, that can stand for a unknown.
Variable
To determine the slope of a line you count the
Rise over Run
Where the graph crosses the x-axis?
x-intercept
a point where a line crosses the vertical axis or y-axis
y-intercept
Slide 17 question 1
.4 as a fraction
4/10
A numerical factor in a term
(Hint: in term 5x, 5 is called the ________?)
Coefficient
Similar triangles have the same
slope
A zero slope graph creates a ___________ line?
Horizontal
A straight line that best represents the data on a scatter plot
line of best fit
Slide 12 Question 3
6 squares laid out flat forming a cross, creates the net of what 3D shape
Cube
2x, .75x and 4x are examples of _____ _____?
like terms
Type of equation, only one number will work to make the equation true.
Solution Type is called?
One Solution
An equation is a function when 1 _________ yields 1 ____.
x, y
No Association
Slide 12 question 1
Find the area of a triangle with a base of 6.2 in and a height of 12in
37.2 in2
18=5m+3
Solve for m.
m=3
x+14>22
x>8
You can determine if a graph is a function by performing the
Vertical Line Test
an occurrence in a scatter plot when there are distinct or separate groups of points.
clusters
Slide 8 question 2
Solve for x
1.5x-6=7.5
x=9
We can use this model to demonstrate how equations must stay balanced when performing inverse operations.
Hanger Model
13+2(x-6)=4x-7
x=4
The y-intercept on a table can be seen when the
x or dependent variable is 0
a point that does not fit the overall patter or trend of a scatter plot
Name an example of one we discussed in class
Outlier
Denis (task 1)
Jared (Handout 2)
Slide 11 question 4
Triangle ABC is a right iscosceles triangle. What are the measures of the 3 angles
Answers will vary: Any combination of 2 equal angles and a 3rd that total 180.
Ex. 40, 40, 100