12/18 Do Now (Unit 6 Retest)

Front

What is the total number of coins Roman used to mow the lawn?

Back

280 coins.

Front

How much money did Roman earn for mowing the lawn?

Back

$26.60.

Front

If Roman has 28 nickels, how many dimes does he have?

Back

252 dimes.

Front

What is the linear regression equation for the pizza prices?

Back

y = 1.5x + 12.

Front

Solve the equation: 0.1(y + 2) = 4(0.2y - 0.3)

Back

y = 2.

Front

Identify the error in the equation: 19 - 2k = 3k - 1. What should be done instead of adding 3k?

Back

They should subtract 3k.

Front

What is the system of inequalities represented by y > -1/5x - 1/2 and y ≤ -2x - 4?

Back

y > -1/5x - 1/2 and y ≤ -2x - 4.

Front

Define a linear regression equation.

Back

A linear regression equation models the relationship between two variables by fitting a linear equation to observed data.

Front

What is the formula for calculating the slope of a line in a linear equation?

Back

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

Front

What does it mean for a system of inequalities to be consistent?

Back

A consistent system has at least one solution.