4/8 - Monday - ACT Math Formulas and Facts

Front

What is the time limit for the ACT Math Section?

Back

60 minutes

Front

What is the equation of a line in slope-intercept form?

Back

y = mx + b

Front

What does the term 'slope' refer to in a linear equation?

Back

The slope represents the rate of change of y with respect to x, calculated as rise over run.

Front

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

Back

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

Front

How many questions are there in the ACT Math Section?

Back

60 questions.

Front

What does 'm' represent in the slope-intercept form of a line?

Back

The slope of the line.

Front

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

Back

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

Front

What is the significance of the y-intercept in a linear equation?

Back

It indicates the value of y when x is 0.

Front

How can you determine if a line is increasing or decreasing based on its slope?

Back

If the slope (m) is positive, the line is increasing; if negative, the line is decreasing.

Front

What is the relationship between parallel lines and their slopes?

Back

Parallel lines have the same slope.