Units 1 - 5 Review (STAAR Math)

Front

Does this mapping diagram represent a function?

Back

Yes, because each input goes to one and only one output.

Front

What is the y-intercept in the following equation: y=-4x-5?

Back

-5

Front

Which set of ordered pairs is a function? {(9,5), (10,5), (9,-5), (10,-5)}, {(3,4), (4,-3), (7,4), (3, 8)}, {(6,-5), (7, -3), (8, -1), (9, 1)}, {(2, -2), (5, 9), (5, -7), (1, 4)}

Back

{(6,-5), (7, -3), (8, -1), (9, 1)}

Front

What is the opposite of squaring a number?

Back

Square root.

Front

What is the linear equation of the following graph? y = -1/2x, y = 2x + 2, y = -1/2x +2, y = -1/2x - 2

Back

y = -1/2x +2.

Front

Define a function in mathematics.

Back

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

Front

What is the slope of the line represented by the equation y = 3x + 1?

Back

3.

Front

What does the term 'y-intercept' refer to in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis.

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

Slope = (y2 - y1) / (x2 - x1).

Front

What is the standard form of a linear equation?

Back

Ax + By = C, where A, B, and C are integers.