Rearranging Equations Solve for Y Slope Intercept

5x + y = 4x, Solve for y

The first step is:

• subtract 5x

• subtract y

• multiply by 5

• divide by 5

Tags

CCSS.HSA.REI.B.3

How would you graph y = ¹/₂ x + 2

• Allow your pencil to aimlessly drift across your paper until- Behold! A line is formed!

• Place a point at 0.5 on your y-axis. Then go up 2 and right 1 and place your second point. Draw your line.

• Start at the origin and go down 1 and over 2 again and again until you see your line.

• Place a point at 2 on the y-axis. Then from that point go up 1 and right 2 and place your second point. Draw your line. (Or make a t-chart)

The solution (answer) to a system of equations is ____________

• the point where the 2 lines intersect

• the graph of a line

• only finding what x = __

Tags

CCSS.8.EE.C.8B

________________

are two or more equations that have the same variables and work together.

• graphing lines

• elimination method

• system of equations

• table

• slope intercept form

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which method requires you to put equations in slope intercept form, graph, and look for an intersection?

• graphing

• elimination

• substitution

Tags

CCSS.8.EE.C.8B

Which method of solving is this system best set up for?

y = -6x + 5

-2x + y = 5

• graphing

• elimination

• substitution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to this system?
y = 2x + 1
y = 4x - 1

• (1,3)

• (-1,-3)

• (-1,3)

• (3,1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The first step to solving a system by substitution is to ______.

• put both equations in standard form

• make sure one of the equations has an isolated variable

• create opposites/inverses

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

If one variable is isolated in one equation, but not in the other ____ may be the quickest way to the solution.

• graphing

• elimination

• substitution

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6