Slope-Intercept Form

What does the y-intercept represent in the slope-intercept form?

• The point where the line crosses the x-axis.

• The point where the line crosses the y-axis, represented by the constant term in the equation y = mx + b.

• The slope of the line in the equation y = mx + b.

• The value of y when x is zero.

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

• 0

• 1

• 2

• 3

If a line has a slope of 0, what does that mean?

• A slope of 0 indicates a horizontal line, where y remains constant as x changes.

• A slope of 0 indicates a vertical line, where x remains constant as y changes.

• A slope of 0 indicates that the line is increasing at a constant rate.

• A slope of 0 indicates that the line is decreasing at a constant rate.

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

• m = (y2 - y1) / (x2 - x1)

• m = (y1 - y2) / (x1 - x2)

• m = (y2 + y1) / (x2 + x1)

• m = (y1 + y2) / (x1 - x2)

What is the slope of a line that is vertical?

• 0

• 1

• undefined

• infinity

What is the slope of a line in slope-intercept form?

• The slope is the y-intercept of the line.

• The slope is the coefficient of x in the equation y = mx + b.

• The slope is the distance between two points on the line.

• The slope is the angle of the line with respect to the x-axis.

What is the slope of the line represented by the equation y = 7 - x?

• 1

• -1

• 0

• 7

How do you identify a negative slope from a graph?

• A negative slope rises from left to right, indicating that as x increases, y increases.

• A negative slope falls from left to right, indicating that as x increases, y decreases.

• A negative slope is horizontal, indicating that y remains constant as x changes.

• A negative slope is vertical, indicating that y increases as x increases.

How would you write the equation with a slope of 4/5 and a y-intercept of -1?

• y = \frac{4}{5}x - 1

• y = \frac{5}{4}x + 1

• y = 4x - 5

• y = -\frac{4}{5}x - 1

How do you identify a positive slope from a graph?

• A positive slope rises from left to right, indicating that as x increases, y also increases.

• A positive slope falls from left to right, indicating that as x increases, y decreases.

• A positive slope is horizontal, indicating that y remains constant as x increases.

• A positive slope is vertical, indicating that y increases infinitely as x increases.