**Warmup**

Solve these without writing anything down:

**Activity #1**

** Solving More Systems.**

Below are a lot of systems of equations.

- Study the equations and answer the questions below.

(1.) Without solving, identify 3 systems that you think would be the** least difficult** to solve. Explain your reasoning.

(2.) Without solving, identify 3 systems that you think would be the **most difficult** to solve. Explain your reasoning.

(3.) Choose 4 systems to solve. At least one should be from your “least difficult” list and one should be from your “most difficult” list.

(a.) 1st system with solution: (least difficult.)

(b.) 2nd system with solution:

(c.) 3rd system with solution:

(d.) 4th system with solution:(most difficult.)

**Activity #2**

**Match a Graph to an Equation.**

- Match each graph below to its equation.

**Activity #3**

**Solve a System of Equations.**

- Read the following carefully and answer the questions that follow.

Which equation, together with = -1.5 + 3, makes a system with one solution?

The system – 6= 4 and 3– 18= 4 has no solution.

(1.) Change one constant or coefficient to make a new system with one solution.

(2.) Change one constant or coefficient to make a new system with an infinite number of solutions.

**Challenge #1**

Tyler was looking at this system of equations:

He said, “Just looking at the system, I can see it has no solution. If you add two numbers, that sum can’t be equal to two different numbers.” Do you agree with Tyler? If not, explain your reasoning.

**Challenge #2**

Here are two points: (-3, 4), (1, 7).

**Challenge #3**

**Quiz Time**

https://www.ixl.com/math/grade-8/solve-a-system-of-equations-by-graphing-word-problems

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