BR Algebra 1 Fall Semester Exam Review

Front

What is a zero of a function?

Back

A zero of a function is a value of x for which the function f(x) = 0. It represents the x-intercept of the graph of the function.

Front

How do you find the y-intercept of a linear equation?

Back

To find the y-intercept of a linear equation in the form y = mx + b, set x = 0 and solve for y. The y-intercept is the point where the line crosses the y-axis.

Front

What is the vertex form of a quadratic function?

Back

Front

How do you evaluate a function at a specific value?

Back

To evaluate a function p(x) at a specific value, substitute the value of x into the function and simplify.

Front

What does it mean for y to be a function of x?

Back

For y to be a function of x, each input value (x) must correspond to exactly one output value (y). This means that no x-value can map to more than one y-value.

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

How do you determine if a table represents y as a function of x?

Back

A table represents y as a function of x if each x-value corresponds to exactly one y-value. No x-value should repeat with a different y-value.

Front

What is the slope-intercept form of a linear equation?

Back

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

Front

How do you graph a linear equation?

Back

To graph a linear equation, find the y-intercept (b) and plot it on the y-axis. Then use the slope (m) to find another point and draw a line through both points.

Front

What is the significance of the vertex in a quadratic function?

Back

The vertex of a quadratic function is the highest or lowest point on the graph, depending on the direction of the parabola. It represents the maximum or minimum value of the function.