Answer:
Step-by-step explanation:
It’s c
Answer:
∠DAB = ∠DBA
Then AD=DB from above statement
Answer:

Step-by-step explanation:
Given: The attachment
Required: Determine the equation
We start by picking any two equivalent points on the table:


Next, we determine the slope, M:




The equation is then calculated as:

Where:


So, we have:

Open bracket

Collect like terms


Hence, the equation is: 
Answer:
The system of inequalities is


Step-by-step explanation:
step 1
Find the equation of the solid blue line
Let

Find the slope of AB

The equation of the line into slope intercept form is equal to

we have

----> the point A is the y-intercept
substitute
-----> equation of the solid blue line
The solution of the inequality is the shaded area above the solid line
therefore
The first inequality is

step 2
Find the equation of the dashed red line
Let

Find the slope of CD

The equation of the line into slope intercept form is equal to

we have

----> the point C is the y-intercept
substitute
-----> equation of the dashed red line
The solution of the inequality is the shaded area below the dashed line
therefore
The second inequality is

The system of inequalities is

