Algebra Linear Equations

Slope

100

Define slope.

What is rise/run?

200

What is the formula for slope?

What is y₂ - y₂ / x₂ - x₂ ?

300

Find the slope using the graph.

What is 1/2?

400

Find the slope using the graph.

What is -4/3?

500

Find the slope between the two points A(2,4) and B(-1,-4).

What is 8/3?

Point-Slope Form

100

What two pieces of information are needed to find the equation of a line in point-slope form?

What is the slope and one point (that is on the line.)

200

Given the point (4,-3) and the slope 7, what is x₁?

What is 4.

300

Given the point (4,-3) and the slope 7, what is y₁?

What is -3.

400

Given the point (4,-3) and the slope 7, what is the equation of the line in slope intercept form?

What is y = 7x - 31

500

Given the point (-2,-9) and the slope 8, what is the equation of the line in slope intercept form?

What is y = 8x + 7

Slope Intercept Form

100

What is the equation for slope intercept form?

What is y=mx+b?

200

Write the equation with a slope of 6 and y-intercept of -8.

What is y=6x-8?

300

Write the equation of a line with slope -2 and y-intercept 0.

What is y=-2x?

400

Graph and label y=2x-2.

Answer on board

500

Graph y=-x+1.

Answer on board

Standard Form

100

What is the equation for standard form?

What is Ax+By=C?

200

Find x and y intercepts of x+4y=8.

The x-intercept is 8 and the y-intercept is 2.

300

Graph -5x+3y=-15.

Answer on the board.

400

Convert y=-2/5x+1 to standard form.

2x+5y=5

500

Convert y=2/3x-5 to standard form.

-2x+3y=-15

Vocabulary & Misc.

100

Define parallel lines.

What is two lines that do not touch?

200

Define perpendicular lines.

What is lines that intersect at 90 degrees?

300

How do you tell the difference between slope intercept form and standard form?

answers vary

400

Given two lines how can you tell they are parallel?

What is they have the same slope?

500

Given two lines how can you tell they are perpendicular?

What is they have opposite reciprocal slopes?