Chapter 5 Test Review At Home

Front

What is the formula to calculate the slope of a line given two points (x1, y1) and (x2, y2)?

Back

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

Tags

CCSS.8.EE.B.5

Front

What does a negative slope indicate about a line on a graph?

Back

A negative slope indicates that as the x-value increases, the y-value decreases.

Tags

CCSS.8.EE.B.5

Front

What is the y-intercept of a line?

Back

The y-intercept is the point where the line crosses the y-axis (x=0).

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

Back

The equation 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

If a line has a slope of 4 and a y-intercept of -3, what is the equation of the line?

Back

y = 4x - 3

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What is the significance of the x-intercept of a line?

Back

The x-intercept is the point where the line crosses the x-axis (y=0).

Front

How do you find the equation of a horizontal line?

Back

A horizontal line has the equation y = k, where k is a constant.

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.

Tags

CCSS.8.EE.B.6

Front

What is the result of simplifying the equation 2(7y + 3) = 14y + 6?

Back

The equation simplifies to 14y + 6 = 14y + 6, which has infinitely many solutions.

Tags

CCSS.8.EE.C.7A