Linear Day1

Front

What is the solution of intersecting lines?

Back

One solution.

Front

What does it mean if a system of equations has no solution?

Back

The lines are parallel and never intersect.

Front

In a direct variation, if y = kx, what is the value of k when y = 39 and x = 3?

Back

k = 13.

Front

If y varies directly with x, and y = 26 when x = 2, what is the value of y when x = 3?

Back

y = 39.

Front

What is the domain of the function defined by -4 < x < 2?

Back

The domain is all x values between -4 and 2.

Front

Which ordered pair (x, y) is a solution to the system of equations?

Back

(2, 6) is a solution.

Front

What is a linear equation?

Back

An equation that makes a straight line when graphed.

Front

What does the slope of a line represent?

Back

The rate of change of y with respect to x.

Front

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

Back

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

Front

What is the y-intercept of a line?

Back

The point where the line crosses the y-axis.