An expression is a math sentence WITHOUT and equal sign

Chapter 2:

Expressions &

An equation is a math sentence WITH an equal sign.

Equations

Terms:

Terms are numbers and/or variables separated by operations symbols (+, - , x, ÷)

We have to be able to osberve and analyze both the graph and idetify the proper situation.

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What do you notice?...

What can you prove?...

Give your statement.

A function is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable)

Chapter 3: Function

Terms:

Slope Intercept

Standard Form

Point Slope

Types of Slope:

Zero, Positive, Negative, Undefined

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​Slope & Linear Functions

Identifying the change in "y" over the change in "x".

​Slope Intercept Form

When given two point or coordinates in a function table, you should be able to find the the slope.

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Slope

Algebraic Method:

When y = o, what is the vale of x?

Y - intercept

When x = 0, what is the value of y?

​​X - intercept

• Standard form of a linear equation is Ax+By=C

• To put a line in standard form, we need our 'x' and 'y' terms on one side and our constant term on the other

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Standard Form

Think of these as multi-step equations, where you must move both the x & y- values to the same side of the equation.

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​Standard form is another way of converting Slope-Intercept form.

O​nce a scatterplot has been graphed, the information on the graph can then be interpreted.

Illustration of scatter plots with various properties:

(a) 'shotgun' scatter, with low association, (b) strong positive association,

(c) strong negative association,

(d) and (e) low association, with very little change in one variable compared with the other.

Some graphs have linear associations, and some have non linear associations. Which is which? Why?

​Scatter Plots

​Take Note ...

Take note ...