Math Problem Statement

Which point is a solution to the system of equations below? У = 2x-2 1y=x+2 A. (6,10) в. (6,4) C. (1,3) D. (4, 6)

Solution

Let's solve the system of equations step-by-step to find which point satisfies both equations.

The system of equations:

  1. y=2x2y = 2x - 2
  2. y=x+2y = x + 2

Step 1: Set the two equations equal to each other

Since both expressions are equal to yy, we can set the right-hand sides equal to each other:

2x2=x+22x - 2 = x + 2

Step 2: Solve for xx

First, subtract xx from both sides:

2xx2=22x - x - 2 = 2 x2=2x - 2 = 2

Now, add 2 to both sides:

x=4x = 4

Step 3: Solve for yy

Now that we know x=4x = 4, substitute x=4x = 4 into one of the original equations. Let's use the second equation y=x+2y = x + 2:

y=4+2=6y = 4 + 2 = 6

Step 4: Check the result

The solution is x=4x = 4 and y=6y = 6, so the point (4,6)(4, 6) should be a solution to the system.

Step 5: Verify with the first equation

Substitute x=4x = 4 into the first equation y=2x2y = 2x - 2:

y=2(4)2=82=6y = 2(4) - 2 = 8 - 2 = 6

Thus, the point (4,6)(4, 6) satisfies both equations.

Answer:

The correct point is D. (4, 6).


Would you like to explore more details about solving systems of equations or have any other questions?

Related questions:

  1. How do you solve a system of equations using substitution?
  2. How would you solve this system using elimination?
  3. What is the graphical interpretation of solving a system of equations?
  4. How can you check the solution of a system using graphing?
  5. What would happen if the system has no solution or infinitely many solutions?

Tip: When solving a system of equations, it's often useful to graph both equations to visually see where they intersect.

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Math Problem Analysis

Mathematical Concepts

Algebra
Systems of Equations
Substitution Method

Formulas

y = 2x - 2
y = x + 2

Theorems

Equality property of equations

Suitable Grade Level

Grades 8-10