DA3 Review

Front

What is the equation of a line with a slope of -3 and a y-intercept of -3?

Back

Front

How do you calculate the amount Brandon needs to save each week for college?

Back

First, calculate the total cost of college after scholarship: $9,850 - $2,120 = $7,730. Then, divide by the number of weeks in 2 years (104 weeks): $7,730 / 104 = $62.60.

Front

What is the equation of a line with a slope of 2 and a y-intercept of -2?

Back

Front

What does a rate of change of 40 miles per hour mean in terms of distance and time?

Back

It means that for every hour, the distance traveled is 40 miles.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit of another quantity.

Front

How do you find the slope of a line given two points?

Back

The slope (m) is calculated using the formula: m = (y2 - y1) / (x2 - x1).

Front

Back

The y-intercept (b) is the value of y when x is 0, representing where the line crosses the y-axis.

Front

What does the slope of a line represent in a real-world context?

Back

The slope represents the rate of change between two variables, such as speed in a distance-time graph.

Front

How can you determine if two graphs have the same unit rate?

Back

Two graphs have the same unit rate if they have the same slope.

Front

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

Back

The x-intercept is the point where the line crosses the x-axis, indicating the value of x when y is 0.