2018 8th Grade Math STAAR Review Part 5

Front

In the equation y=mx+b, what does 'm' represent?

Back

Slope

Front

Is 0.8 a rational number?

Back

True

Front

What is the formula for the slope of a line?

Back

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

Front

What is the y-intercept in the equation y=mx+b?

Back

The value of y when x=0.

Front

What does it mean for a number to be rational?

Back

A rational number can be expressed as a fraction a/b where a and b are integers and b ≠ 0.

Front

What is the x-intercept in the equation y=mx+b?

Back

The value of x when y=0.

Front

What is the difference between the slope and the y-intercept?

Back

The slope (m) indicates the steepness of the line, while the y-intercept (b) is the point where the line crosses the y-axis.

Front

If a line has a slope of 0, what does that indicate about the line?

Back

The line is horizontal.

Front

If a line has an undefined slope, what does that indicate about the line?

Back

The line is vertical.

Front

What is the standard form of a linear equation?

Back

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