Writing Linear Equations from Graphs

Front

What is the y-intercept in the equation y = -2x + 5?

Back

5

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What does the graph of y = -x + 2 look like?

Back

A line with a negative slope that crosses the y-axis at 2.

Front

Write the equation of the line with a slope of -3 and a y-intercept of -3.

Back

y = -3x - 3

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

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

Back

The slope of the line.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What is the equation that matches the graph with a slope of 1/4 and a y-intercept of 2?

Back

y = 1/4 x + 2

Front

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

Back

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

Tags

CCSS.8.EE.B.5

Front

What is the standard form of a linear equation?

Back

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

Front

What does the term 'linear equation' mean?

Back

An equation that represents a straight line when graphed.

Front

How can you determine if a line is increasing or decreasing from its equation?

Back

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

Tags

CCSS.HSF-LE.A.1B

Front

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

Back

It is the point where the line crosses the y-axis.