The black lines on this railroad crossing sign are an example of ________ type of lines.

y = 3x + 2
y = 3x + 4
These lines are...

Parallel lines are the lines having same slope. They don’t intersect each other and any point.

y = x +2
y = x - 30
These lines are...

Parallel lines are the lines having same slope. They don’t intersect each other and any point.

Perpendicular lines make a _____ angle.

If two lines are perpendicular to each other, their slopes are ____________.

For such questions, we should know the properties of perpendicular lines.

If two lines are parallel their slopes are ____________.

Are B and C parallel lines?

For such questions, we should know the properties of parallel lines.

Identify the two parallel lines.

Therefore, the lines A and B are parallel lines.

Write the slope of a line perpendicular to a line with slope .

For such questions, we should know about the slopes of perpendicular lines.

The following represents slopes of two lines. Identify the two lines.
m = 7 and m = -7

For such questions, we should know the properties of perpendicular and parallel lines.

Describe the figure.

For such questions, we should know the properties of lines.

y - y₁ = m (x - x₁)
The name for this equation is. . .

For such questions, we should know different forms of equations related to lines.

y = mx + b
The name for this equation is. . .

Write the equation of a line that is parallel to y = -7x + 5 and passes through the point (0, 6)

For such questions, we should know different formulas required to find lines. We should also know the concept of slope of different lines.

Write the equation of a line parallel to y = -x + 3 and that goes through the point (4, -1)

For such questions, we should know different formulas required to find lines. We should also know the concept of slope of different lines.

y = x + 3
y = x + 7
These lines are...

For such questions, we should know the properties of perpendicular lines.