Ch 8 - Geo Trig Final Review

Front

What is the slope of a line represented by the equation y = -rac{2}{5}x + 3?

Back

The slope (m) of the line is -\frac{2}{5}.

Front

Define slope in the context of a linear equation.

Back

Slope is a measure of the steepness of a line, calculated as the rise over run (change in y over change in x).

Front

What is the formula to calculate the slope between two points (x1, y1) and (x2, y2)?

Back

The formula is m = \frac{y2 - y1}{x2 - x1}.

Front

If a line has a slope of -\frac{5}{2}, what does this indicate about the direction of the line?

Back

A slope of -\frac{5}{2} indicates that the line is decreasing from left to right.

Front

What is the missing value if the average of 5, 7, and x is 8.1?

Back

The missing value x is 8.1.

Front

How do you round a number to the nearest tenth?

Back

To round to the nearest tenth, look at the hundredths place. If it's 5 or more, round up; if it's less than 5, round down.

Front

What is the missing value if the average of 20, 30, and x is 36.7?

Back

The missing value x is 36.7.

Front

If x + 5 = 7, what is the value of x?

Back

The value of x is 2.

Front

What is the measure of angle T if the angles in a triangle sum to 180 degrees and the other two angles are 60 and 48 degrees?

Back

The measure of angle T is 72 degrees.

Front

What is the Pythagorean theorem?

Back

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (c) is equal to the sum of the squares of the lengths of the other two sides (a and b): a^2 + b^2 = c^2.