8TH MATH TEKS 8.5

Front

What is the formula for the area of a square?

Back

Area = side × side

Front

If the area of a square is 48 square feet, what is the length of each side?

Back

Each side is approximately 6.9 feet.

Front

What is a proportional relationship?

Back

A relationship where two quantities maintain a constant ratio.

Front

Which graph represents a proportional relationship?

Back

A graph that passes through the origin and has a straight line.

Front

How do you convert a decimal to scientific notation?

Back

Move the decimal point to create a number between 1 and 10, then multiply by 10 raised to the power of the number of places moved.

Front

What is 0.0005 in scientific notation?

Back

5 x 10^(-4) (Note: Correcting the previous answer to the right scientific notation)

Front

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

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

Is the equation y=7x+5 proportional or non-proportional?

Back

Non-proportional, because it does not pass through the origin.

Front

What does the slope of a line represent?

Back

The rate of change of y with respect to x.

Front

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

Back

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