Algebra 1 Unit 6

The solution to this system is?

• (3,1)

• (-1,3)

• (2,3)

• (1,3)

Solve the system by elimination: 

−7x + 6y = 29
60x + 6y = 96 

• (1,6) 

• (−1,−3) 

•  (−3, −1) 

• (−1, 3) 

What is the solution to this system?
y = 6x - 11
-2x - 3y = -7

• (1,2)

• (2,1)

• (-1,2)

• (-2,1)

Your family goes to a restaurant for dinner. There are 6 people in your family. Some order the chicken dinner for $14.80, and some order steak for $17. If the total bill was $91, which system best represents the situation?
c = chicken dinner and s = steak dinner

• c + s = 6
  14.80c + 17s = 91

• c + s = 91
  14.80c + 17s = 6

• c + s = 6
  14.80s + 17c = 91

• c + s = 91
  14.80c+ 17s = 6

What is the value of y in the solution to this system of equations?

Mathematical Equivalence

ON

Joley is opening her first checking account as a teenager. She doesn’t have a job, so most of the income will be gifts from birthdays and holidays. Bank A has an $8 monthly charge. Bank B charges 1% of the balance. Which account balance below will result in Bank A being a better financial choice?​

• $850

• $550

• $650

• $750

Graph the solution to the system. The first equation has been plotted for you.

y = -3x-3

y= 4x +4

Solve :
4x + 2y = 14
5x + 2y = 16 

• no solution

• (2, 3)

• (-2, 3)

• (16, 14)

Solve for x and y
3x + 2y = 16
7x + y = 19

• (-2,5)

• (-2,-5)

• (2,-5)

• (2,5)