Thursday Review

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 range of a function?

Back

The range of a function is the set of all possible output values (y-values) that the function can produce.

Front

What is the domain of a function?

Back

The domain of a function is the set of all possible input values (x-values) that the function can accept.

Front

How do you solve a system of equations by substitution?

Back

To solve by substitution, solve one equation for one variable and substitute that expression into the other equation.

Front

What is a zero of a function?

Back

A zero of a function is a value of x that makes the function equal to zero, often represented as (x, 0).

Front

What does it mean if a graph has no zero?

Back

If a graph has no zero, it means that the function does not cross the x-axis, indicating no real solutions for f(x) = 0.

Front

What is the significance of the point (0, 3) on a graph?

Back

The point (0, 3) indicates that when x = 0, the value of the function is 3, representing the Y-INTERCEPT.

Front

How do you determine the range from a graph?

Back

To determine the range from a graph, identify the lowest and highest y-values that the graph reaches.

Front

What does x > -2 mean in terms of domain?

Back

x > -2 means that the function accepts all x-values greater than -2, but not including -2 itself.

Front

What is the solution to the system of equations 5x + 4y = -14 and y = -7x - 15?

Back

The solution is (-2, -1), which is the point where both equations intersect.