3C review

Front

What is the Y-intercept of a line?

Back

The Y-intercept is the point where the line crosses the Y-axis, represented as an ordered pair (0, y).

Front

How do you identify the Y-intercept from a graph?

Back

Look for the point where the line intersects the Y-axis; the x-coordinate will be 0.

Front

What does the ordered pair (0, 3) represent?

Back

It represents a point on the graph where the line crosses the Y-axis at 3.

Front

If a line has a Y-intercept of (0, 20), what does this mean?

Back

It means that when x = 0, the value of y is 20.

Front

How can you determine how many games Isaac can play if he spends all his money?

Back

Divide the total amount of money Isaac has by the cost of one game.

Front

If Isaac has $200 and each game costs $5, how many games can he play?

Back

40 games, because 200 ÷ 5 = 40.

Front

What is the formula for finding the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line.

Front

What does a slope of 0 indicate about a line?

Back

A slope of 0 indicates that the line is horizontal.

Front

What does an undefined slope indicate about a line?

Back

An undefined slope indicates that the line is vertical.

Front

What is the significance of the point (3, -3) in relation to a line?

Back

It is a point on the line where x = 3 and y = -3.