Equation of a Straight Line

Front

What orientation of a line does x = -5 show?

Back

Vertical

Front

Write the equation of a straight line that passes through the points (0, 6) and (2, 14).

Back

y = 4x + 6

Front

What is the equation of the straight line which passes through the point (0,-7) and has a gradient of 4?

Back

y = 4x - 7

Front

What is the slope between the points (-3, -4) & (7, 6)?

Back

m = 1

Front

What is the gradient of the straight line shown in the diagram if it is horizontal?

Back

m = 0

Front

What is the slope-intercept form of a line?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the slope (m) between two points (x1, y1) and (x2, y2)?

Back

m = (y2 - y1) / (x2 - x1)

Front

What does a slope of m = 0 indicate about a line?

Back

The line is horizontal.

Front

What does a slope of m = undefined indicate about a line?

Back

The line is vertical.

Front

If a line has a slope of 2, what does this mean?

Back

For every 1 unit increase in x, y increases by 2 units.