Unit 1 review!-Algebra 2

Front

What does the equation x=2 represent on a graph?

Back

A vertical line that crosses the x-axis at the point (2,0).

Front

What are the two equations that represent Joe's coffee and doughnut purchases?

Back

10c + 5d = 16.50 and 5c + 10d = 14.25.

Tags

CCSS.8.EE.C.8C

Front

How do you solve the system of equations x + 3y = 9 and 2x + y = -2?

Back

The solution is the ordered pair (-3,4).

Tags

CCSS.HSA.REI.C.6

CCSS.8.EE.C.8B

Front

What is the solution to the system of equations 3x + 2y = 16 and 7x + y = 19?

Back

The solution is the ordered pair (2,5).

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

If f(x) = -3x - 8, what is f(-1)?

Back

f(-1) = -5.

Tags

CCSS.HSF.IF.A.2

Front

What is a system of equations?

Back

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

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

What does it mean to solve a system of equations graphically?

Back

Finding the point(s) where the graphs of the equations intersect.

Tags

CCSS.8.EE.C.8B

Front

What is the substitution method in solving systems of equations?

Back

Replacing one variable with an expression from another equation.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

What is the elimination method in solving systems of equations?

Back

Adding or subtracting equations to eliminate one variable.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

What is the definition of a linear equation?

Back

An equation that makes a straight line when graphed.