linear equations

slope

100

What is slope? 

Rise over Run

200

What is the slope of a horizontal line?

zero

300

formula of slope?

y2-y1 over x2-x1

400

What is the slope of this equation?

y = -7x + 4

Slope = -7

500

What is the slope of the line with the given coordinates? (-4, -5) (-5, 5)

slope=3

y/x-intercept

100

What is y-intercept?

where the line crosses the y-axis

200

What is the y-intercept of the following equation? 

y = -9x + 2

(0,2)

300

Find the y-intercept of y=4x-8

(0, -8)

400

What is the x-intercept?

where the line crosses the x-axis

500

When graphing a line, what is the first point we plot?

the y-intercept

slope intercept form

100

What is slope intercept form?

y = mx + b

200

What does the m represent in slope intercept form?

m = slope

300

What does the b represent in slope intercept form?

b = y- intercept

400

What is the equation for m = 17 and b = -4?

y = 17x -4

500

Explain how to graph the line y=2/3 x - 4

start at the origin

go down 4 units and plot a point

go up 2, right 3 units and plot a point

repeat

connect points with a line and add arrows on the end

solving equation

100

3x + 8 = 17

x = 3

200

2x – 4 = -12

x = -4

300

-7 = 4x - 3

-1 = x

400

3x-18 = 5x

-9 = x

500

11x – 5 = -13x + 7

x=12/24

bonus

100

What are supplementary angles?

measures add up to 180 degrees

200

What object has two endpoints and can be measured?

line segment

300

What is formed by two rays that share a common endpoint?

angle

400

Describe an acute, right, and obtuse angle. 

acute: between 0 and 90

right: exactly 90

obtuse: between 90 and 180

500

DAILY DOUBLE

Angle 1 and Angle 2 are vertical angles. If m<1=(x+2)^o and m<2=85^o, then what is the measure of angle 1?

85^o