Question

unit 2

1. determine whether each number is a part of the solution defined by $x \geq -1$

answer yes or no for each.

a) $x = 6$ b) $x = -8$

c) $x = -1$ d) $x = -5$

1. determine if each ordered pair is the solution for the system of equations. answer yes or no for each. show your work. $\

$$\begin{cases} -x - 5y = 4 \\\\ -2x + 5y = 8 \\end{cases}$$

$

a) $(-9, 1)$ b) $(-4, 0)$

• if you are solving a system of equations and you get a result such as:
• $0 = 0$, then the solution to the system is: __________ __________ solutions.
• $0 = 5$, then the solution to the system is: _______ solution.

1. solve the system by the substitution method:

$\

$$\begin{cases} -6x + 4y = 18 \\\\ y = 3x + 3 \\end{cases}$$

$ 17) ____________

Explanation:

Question 15

Part a)

Step1: Check if \( 6 \geq -1 \)

Since \( 6 \) is greater than \( -1 \), it satisfies \( x \geq -1 \).

Step1: Check if \( -8 \geq -1 \)

Since \( -8 \) is less than \( -1 \), it does not satisfy \( x \geq -1 \).

Step1: Check if \( -1 \geq -1 \)

Since \( -1 \) is equal to \( -1 \), it satisfies \( x \geq -1 \).

Answer:

Yes

Part b)