Mod 1&2 Review

Front

Which expression is equal to 3c (⅓ d - 9) - 7(c - 1) + d(c + 4)?

Back

2cd − 34c + 4d + 7

Front

What does 'b' represent in y=mx+b?

Back

y-intercept

Front

Which system of inequalities is represented in the graph?

Back

2x - y ≥ -2, x - y < 2

Front

These two lines intersect at _____?

Back

(4, -2)

Front

In the equation y=mx+b, what does the m represent?

Back

slope

Front

What is the definition of a linear equation?

Back

An equation that makes a straight line when graphed.

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

What does it mean for two lines to be parallel?

Back

They have the same slope and will never intersect.

Front

What does it mean for two lines to be perpendicular?

Back

Their slopes are negative reciprocals of each other.