Slopes and Slope Intercept Form

What is the formula to calculate the slope of a line given two points?

• x2 - x1 / y2 - y1

• y1 - y2 / x1 - x2

• x1 - x2 / y1 - y2

• (y2 - y1) / (x2 - x1)

Find the slope of the line passing through the points (2, 4) and (-3, 1).

• The slope of the line passing through the points (2, 4) and (-3, 1) is 0

• The slope of the line passing through the points (2, 4) and (-3, 1) is -4/5

• The slope of the line passing through the points (2, 4) and (-3, 1) is 2/3

• The slope of the line passing through the points (2, 4) and (-3, 1) is (1 - 4) / (-3 - 2) = -3 / -5 = 3/5

What is the slope intercept form of a linear equation?

• y = mx - b

• y = mx + b

• y = mx / b

• y = mx * b

Write the equation of a line with a slope of 2 and a y-intercept of -3 in slope intercept form.

• y = 2x - 3

• y = -3x + 2

• y = 3x - 2

• y = 2x + 3

Graph the linear equation y = 3x + 2.

• The graph of the linear equation y = 3x + 2 is a straight line with a y-intercept at (0, 2) and a slope of 3.

• The graph of the linear equation y = 3x + 2 is a parabola

• The graph of the linear equation y = 3x + 2 is a circle

• The graph of the linear equation y = 3x + 2 is a hyperbola

What is the slope of a horizontal line?

• 45

• Undefined

• 0

• 1

What is the y-intercept of the line given by the equation y = -5x + 7?

• -5

• 0

• 1

• 7

Write the equation of a line with a slope of -1/2 and a y-intercept of 4 in slope intercept form.

• y = -1/2x + 4

• y = 1/2x + 4

• y = 2x + 4

• y = -4x + 1

Find the slope of the line passing through the points (-1, 3) and (4, -2).

• 0

• -1

• 2

• 5

Identify the slope and y-intercept of the line represented by the equation y = 2x - 1.

• The slope is 0 and the y-intercept is 2.

• The slope is 1 and the y-intercept is 2.

• The slope is 2 and the y-intercept is -1.

• The slope is -2 and the y-intercept is 1.