A.3C Practice

Front

What is the y-intercept of a graph?

Back

The y-intercept is the point where the graph crosses the y-axis, represented as (0, y).

Front

What is the x-intercept of a graph?

Back

The x-intercept is the point where the graph crosses the x-axis, represented as (x, 0).

Front

What does it mean for a graph to have a zero?

Back

A zero of a graph is the x-value where the graph intersects the x-axis, meaning the output (y-value) is zero.

Front

How do you find the zero of a linear equation?

Back

To find the zero of a linear equation, set y to 0 and solve for x.

Front

What is the zero for the equation y = -4x + 20?

Back

The zero is x = 5.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept indicates the starting value of y when x is 0.

Front

What does it mean if a graph has no x-intercept?

Back

If a graph has no x-intercept, it means the line does not cross the x-axis, indicating that the equation has no real solutions.

Front

What is the general form of a linear equation?

Back

The general form of a linear equation is y = mx + b, where m is the slope and b is the y-intercept.

Front

How can you determine the slope of a line from a graph?

Back

The slope can be determined by the rise over run between two points on the line.

Front

What is the slope of a line that rises 3 units for every 2 units it runs?

Back

The slope is 3/2.