Alg I- Midterm Review Day TWO

Front

Evaluate the expression x - 2y for x = 10 and y = -4.

Back

18

Front

Find the slope of the line given the points (-2, 5) and (-3, 6).

Back

m = -1

Front

What is the slope of the line x = 3?

Back

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Front

Which equation matches the graph? y = 2x, y = 1/4 x + 2, y = 1x + 4, y = 2x - 3.

Back

y = 1/4 x + 2

Front

Find the slope and determine if the line is rising, falling, horizontal, or vertical for the points (3,7) and (-2,5).

Back

2/5; rising

Front

What is the definition of slope in a linear equation?

Back

The slope is the ratio of the rise (change in y) to the run (change in x) between two points on a line.

Front

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

Back

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

Front

What does it mean if a line has a slope of 0?

Back

The line is horizontal.

Front

What does it mean if a line has an undefined slope?

Back

The line is vertical.

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.