Algebra 2 CP Midterm Review

Front

What is the sine of angle X?

Back

The sine of angle X is defined as the ratio of the length of the opposite side to the length of the hypotenuse in a right triangle. For example, if sin X = 15/17, then the opposite side is 15 and the hypotenuse is 17.

Front

What is the tangent of angle Z?

Back

The tangent of angle Z is defined as the ratio of the length of the opposite side to the length of the adjacent side in a right triangle. For example, if tan Z = 21/28, then the opposite side is 21 and the adjacent side is 28.

Front

How do you solve a system of equations by substitution?

Back

To solve a system of equations by substitution, solve one equation for one variable and substitute that expression into the other equation. For example, given 5x + 4y = -14 and y = -7x - 15, substitute y in the first equation to find x.

Front

What is the cosine of angle P?

Back

The cosine of angle P is defined as the ratio of the length of the adjacent side to the length of the hypotenuse in a right triangle. For example, if cos P = q/r, then the adjacent side is q and the hypotenuse is r.

Front

How do you solve for x in an equation?

Back

To solve for x, isolate x on one side of the equation. For example, if the equation is x + 10 = 60, subtract 10 from both sides to find x = 50.

Front

What is the Pythagorean theorem?

Back

Front

What is the quadratic formula?

Back

Front

What is a linear equation?

Back

Front

What is the difference between a function and a relation?

Back

A function is a special type of relation where each input (x-value) is associated with exactly one output (y-value). In contrast, a relation can have multiple outputs for a single input.

Front

What is the slope-intercept form of a line?

Back