Graphing Lines Review

Front

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

Back

y-intercept

Front

Find the slope of the line represented by the points (1, 2) and (4, 5).

Back

Slope = \frac{rise}{run} = \frac{5-2}{4-1} = \frac{3}{3} = 1

Front

What is the y-intercept of the line with the equation y = -2x + 4?

Back

4

Front

Find the slope of the line using rise/run from the points (2, 3) and (5, 5).

Back

Slope = \frac{5-3}{5-2} = \frac{2}{3}

Front

Graph the line with the equation y = -\frac{2}{3}x + 4. What is the y-intercept?

Back

4

Front

What is the slope of the line represented by the equation y = 3x - 1?

Back

3

Front

If a line has a slope of -5/3, what does this indicate about the line's direction?

Back

The line is decreasing.

Front

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

Back

Slope = \frac{y2 - y1}{x2 - x1}

Front

What does a slope of 0 indicate about a line?

Back

The line is horizontal.

Front

What is the slope of a vertical line?

Back

Undefined.