Linear Equations Review

Front

Jenna's total money after working x days, starting with $141 and earning $32 per day.

Back

y = 32x + 141

Front

What is the rate of change of the graph after a strong cold front blew through, causing the temperature to drop rapidly? Options: 2.5°F per hour, 0.2°F per hour, -0.2°F per hour, -2.5°F per hour

Back

-2.5°F per hour

Front

Equation to find total plants in Stephanie's garden: 2 rows of 4 tomato plants, x rows of 6 squash plants. Options: y = 6x + 6, y = 8x + 6, y = 7x + 6, y = 6x + 8

Back

y = 6x + 8

Front

Initial set up fee for renting a bounce house (based on table data). Options: $65, $55, $130, $185

Back

$55

Front

Rate per hour for renting a bounce house (Kiki's daughter's party).

Back

$65

Front

Interpret the slope in the equation y = 4,500 - 450p, where p is the price and y is the demand.

Back

For each dollar the price increases, demand decreases by 450 units.

Front

On average, Matt's manufacturing company produces 130 units in 5 working days and 650 units in 25 working days. In a linear model of this situation, which statement applies?

Back

An additional day of production is associated with 26 units.

Front

Interpret the y-intercept in the model: y = 189,785 + 37,896x, where x represents the number of years after 2009, and y represents the expense budget in dollars.

Back

The company's expense budget for 2009 was $189,785.

Front

Interpret the slope of the linear model: y = 437 - 18x, where x is the average meal price (in dollars), and y is the number of daily customers.

Back

If the average meal price increases by $1, the number of daily customers decreases by 18.

Front

A company is testing a product which is intended to make hair grow faster. One of the test subjects started with a hair length of 8.2 inches. After a year of using the product, the test subject's hair measured 18.4 inches. If the growth rate was constant during the trial period, which statement applies? Options: An additional month of product use is associated with an additional 2.22 inches of growth., An additional 0.85 month of product use is associated with an additional inch of growth., An additional month of product use is associated with an additional 0.85 inch of growth., An additional 2.22 months of product use is associated with an additional inch of growth.

Back

An additional month of product use is associated with an additional 0.85 inch of growth.