Quick Start Expectations 1.Fill in planner and HWRS HW: p. 98, #2-6, 7a-b, 8-12 2.Get a signature on...

Quick Start Expectations1. Fill in planner and HWRS

HW: p. 98, #2-6, 7a-b, 8-12

2. Get a signature on HWRS3. On desk: journal, calculator, HWRS, pencil, pen

4. Warm Up:

Define all the parts of the equation.

y = mx + b

The dependent variable Slope The

independent variable

Y- intercept

How do you find the slope from…

a graph?• Rise (vertical change)

Run (horizontal change)

a table?• As x goes up by 1, what happens to y?

an equation?• The coefficient • (the number next to the variable)

Y-intercept =

Slope = Rise = Run

6

-3 1

Y = 6 - 3x

Y-intercept =

Slope = Rise = Run

Y = 3x + 6

6

3 1

Y-intercept =

Y = 1.5x - 1

Slope = Rise = change in Y = Run change in X-1

3 2

Y-intercept =

Y = -0.5x + 5

Slope = Rise = change in Y = Run change in X5

-0.5 1

Y-intercept = Slope = coefficient of xSlope =

5

2.5

Y-intercept = Slope = coefficient of xSlope =

20

-3

Slope = Rise = change in Y = Run change in X

Make a table?

Or calculate the change in y divided by the change in x

-1

Use the table to find 2 more points?Find the y-intercept , write the equation, use substitution?

(4, 4)(5, 3)(6, 2)

Graph the points?

a graph?• Rise (vertical change)

Run (horizontal change)

a table?• As x goes up by 1, what happens to y?

an equation?• The coefficient • (the number next to the variable)