Writing Equations from a Graph

Front

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

Back

5

Front

Slope is known as rise/ ___?

Back

run

Front

What is the slope in the equation y = 2x + 3?

Back

2

Front

What does 'b' represent in y = mx + b?

Back

y-intercept

Front

Which of these represents slope-intercept form? y - y1 = m(x - x1), Ax + By = C, or y = mx + b?

Back

y = mx + b

Front

What is the definition of slope?

Back

The ratio of the rise (vertical change) to the run (horizontal change) between two points on a line.

Front

How do you find the slope from a graph?

Back

Identify two points on the line, calculate the rise over run.

Front

What does the 'm' represent in the equation y = mx + b?

Back

The slope of the line.

Front

If a line rises from left to right, what is the sign of its slope?

Back

Positive.

Front

If a line falls from left to right, what is the sign of its slope?

Back

Negative.