Unit 3 Lessons 8-14 Pre Test 8th Modified

Front

How can you tell if a point is a solution to a system?

Back

The (x,y) coordinates satisfy both equations.

Front

Simplify: -r - 10r

Back

-11r

Front

The ordered pair that satisfies all equations in the system is called a ________________.

Back

solution of a system.

Front

Find the slope of the line through: (2, 4) and (6, 12)

Back

2.

Front

How many solutions does this system have?

Back

One.

Front

What is the definition of a system of equations?

Back

A set of two or more equations with the same variables.

Front

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

Back

It has at least one solution.

Front

What does it mean for a system of equations to be inconsistent?

Back

It has no solutions.

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

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

Back

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