Alg. ch. 4 review (no piecewise)

Front

Convert the following standard form equation to slope-intercept (y=mx+b): 2y = -6x + 24

Back

y = -3x + 12

Front

Write the equation of the line parallel to y = 3x - 4/3 through the point (-1, 2) in slope-intercept form.

Back

y = 3x + 5

Front

What is the slope of the line that is perpendicular to y = 3/4x + 5/3?

Back

-4/3

Front

Write the equation of the trend line in slope-intercept form: y = ?

Back

y = -\frac{1}{2}x + 6

Front

True or False: The group of hikers descends about 250 feet every minute based on the slope of the scatter plot.

Back

False

Front

What is the slope of a line in slope-intercept form y = mx + b?

Back

m (the coefficient of x)

Front

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

Back

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

Front

What does a positive slope indicate about a line?

Back

The line rises from left to right.

Front

What does a negative slope indicate about a line?

Back

The line falls from left to right.

Front

What is the slope of a horizontal line?

Back

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