Spiral Review 2.7

Front

Find the slope of the line that goes through the points (−11,−5) and (1,−12)

Back

Front

Find the slope of the line that goes through the points (−1,−2) and (−3,−4)

Back

The slope is 1.

Front

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

Back

m represents the slope of the line.

Front

Evaluate f(-2) if f(x) = x^2 + 3

Back

f(-2) = 7.

Front

What is the formula to calculate the slope between two points (x1, y1) and (x2, y2)?

Back

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that the line rises as it moves from left to right.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that the line falls as it moves from left to right.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

If the slope of a line is 2, what does this mean?

Back

For every 1 unit increase in x, y increases by 2 units.