Slope-Intercept Form: Graphs, Tables, Equations, & Word Problems

Front

What is the correct slope-intercept form?

Back

y = mx + b

Front

Jackson started with $800 in his savings account, but has to pay $30 a month for his electricity bill. Which equation relates his savings, y, to the amount of months, x?

Back

y = -30x + 800

Front

Back

slope: 3/2, y-intercept: 3

Front

Which equation represents the table relating x and y in slope-intercept form?

Back

y = 2x + 2

Front

Stephanie owes her mom $80 for a recent trip to the mall. She plans to pay back $15 a month until it is paid back. Which equation relates the amount she owes, y, to the amount of months, x?

Back

y = -15x + 80

Front

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

Back

The slope of the line.

Front

What does 'b' represent in the slope-intercept form?

Back

The y-intercept of the line.

Front

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

Back

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

Front

If the slope of a line is negative, what does that indicate about the line's direction?

Back

The line decreases as it moves from left to right.

Front

Back

The y-intercept is -5.