SAT Review

Front

What is the definition of a y-intercept in a graph?

Back

The y-intercept is the point where a line crosses the y-axis, represented as (0, y).

Front

How do you calculate the slope of a line given two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1).

Tags

CCSS.8.EE.B.5

Front

What is the slope of a line that rises 3 units for every 5 units it runs?

Back

The slope is 3/5.

Tags

CCSS.8.EE.B.5

Front

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

Back

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

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

How do you find the equation of a line given a point and the slope?

Back

Use the point-slope form: y - y1 = m(x - x1), where (x1, y1) is the point and m is the slope.

Front

What is the formula to convert a rate from per minute to per hour?

Back

To convert a rate from per minute to per hour, multiply the rate by 60.

Tags

CCSS.6.RP.A.3B

Front

If a line has a slope of -2, what does this indicate about the direction of the line?

Back

A slope of -2 indicates that the line falls as it moves from left to right.

Tags

CCSS.8.EE.B.5

Front

What is the significance of a slope of 0 in a linear equation?

Back

A slope of 0 indicates a horizontal line, meaning there is no change in y as x changes.

Tags

CCSS.8.EE.B.5

Front

How do you determine if two lines are parallel?

Back

Two lines are parallel if they have the same slope.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

What does a negative slope indicate about a linear relationship?

Back

A negative slope indicates an inverse relationship; as one variable increases, the other decreases.

Tags

CCSS.8.EE.B.5