Understanding Line Equations and Rotations

What is the y-intercept of the line represented by the equation y = 2x - 1?

• -1

• 0

• 1

• 2

How do you determine the x-intercept of a line given its equation?

• Use the slope to find the intercept

• Set x to 0 and solve for y

• Find the midpoint of the line

• Set y to 0 and solve for x

What is the x-intercept of the line y = 2x - 1?

• 1/2

• 1

• 0

• -1/2

What is the slope of a line that is perpendicular to a line with a slope of 2?

• 2

• -1/2

• -2

• 1/2

What is the y-intercept of the line with the equation y = -1/2x + 1/4?

• 1/4

• -1/2

• -1/4

• 1/2