STAAR REVIEW

Front

What is the maximum value of a quadratic function?

Back

The maximum value of a quadratic function occurs at the vertex of the parabola when it opens downwards.

Front

What is direct variation?

Back

Direct variation is a relationship between two variables where one is a constant multiple of the other, expressed as y = kx.

Front

How do you find the slope of a line given two points?

Back

The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1).

Front

What is a function?

Back

A function is a relation where each input has exactly one output.

Front

What does the graph of an inequality represent?

Back

The graph of an inequality shows all the solutions that satisfy the inequality, often shaded on one side of the boundary line.

Front

What is the vertex of a quadratic function?

Back

The vertex is the highest or lowest point of the parabola, depending on whether it opens upwards or downwards.

Front

What is the standard form of a quadratic equation?

Back

The standard form is y = ax^2 + bx + c, where a, b, and c are constants.

Front

How do you determine if a relation is a function using the vertical line test?

Back

If a vertical line intersects the graph at more than one point, the relation is not a function.

Front

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

Back

The y-intercept is the point where the line crosses the y-axis, representing the value of y when x = 0.

Front

What is the difference between a linear equation and a quadratic equation?

Back

A linear equation has a degree of 1, while a quadratic equation has a degree of 2.