Writing Linear Equations from Story Problems

What does the slope in a linear equation represent?

• The initial value of y when x is zero

• The constant rate of change between y and x

• The point where the line crosses the x-axis

• The total sum of x and y values

In the equation y = mx + b, what does 'b' stand for?

• The y-intercept

• The total change in y

• The slope of the line

• The x-intercept

What is the slope in Jim's running routine problem?

• 14

• 3.2

• 0

• 7.5

How many miles does Jim have after 0 days of running?

• 3.2 miles

• 0 miles

• 45 miles

• 14 miles

What is Renee's initial amount in her bank account?

• $45

• $57

• $12

• $37.50

How much does Renee save each day after her expenses?

• $57

• $37.50

• $12

• $7.50

What is the equation representing Renee's savings over time?

• y = 7.5x + 45

• y = 37.5x + 45

• y = 12x + 45

• y = 57x + 45