Finding Solution to the Equation

Solve by elimination:
4x+9y=28
-4x-y=-28

• (-7,0)

• (6,0)

• (-6,0)

• (7,0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What would be the first step in finding the solution with elimination?

4x + 3y = 1

x - 3y = -11

• cross out the 3y and -3y

• cross out the 4x and x

• change all the signs of the second equation

• add 1 and -11

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of Equation (x,y)
x + 4y = –3
 x + 7y = –12 

• (-3,9)

• (9,-3)

• (3,9)

• (9,3)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What are the roots of quadratic equation?

• Coefficients of the equation

• Solutions to the equation

• The highest exponent of the variable

• The graphical representation of the equation

Tags

CCSS.HSA-REI.B.4B

What can the roots to a quadratic equation be called?

• zeros

• solutions

• x-intercepts

• none of the choices

Tags

CCSS.HSA-REI.B.4B

What is another name for the x-intercepts and solutions of a quadratic?

• y-intercept

• Zeros

• x-axis

• They don't have another name

Tags

CCSS.HSF-IF.C.7C

What can the roots to a quadratic equation be called? (select all that apply)

• zeros

• solutions

• x-intercepts

• y-intercepts

Tags

CCSS.HSF-IF.C.7A

What's another name for the x-intercepts?

• Factors

• Domain

• Range

• Zeros

Tags

CCSS.HSF-IF.C.7C

Solve the system:
x + 6y = 17
x - 3y = 8

• (5, 2)

• (11, 1)

• (1, 11)

• no solution

Tags

CCSS.8.EE.C.8B

4x +  8y = 20
-4x + 2y = -30
Which variable will be eliminated?

• The  x

• The  y

• The  z

• The unknown

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6