Answer:

Step-by-step explanation:
Given:



First, we have that the line is parallel to RS.
This means that the line has the same slope as RS and the slope of RS is calculated as follows:




So, the line has a slope of 
Next, we have that the line passes through
.
The equation of the line is then calculated using the following formula



Open bracket

Make y the subject


This is your generic run-of-the-mill sinusoidal function:
f(x) = sin(x)
This is the same sine function but with a phase shift of 3 units to the right:
f(x) = sin(x-3)
This is the sine function but with an amplitude of 4 units:
f(x) = 4sin(x)
This is the sine function but flipped across the x-axis:
f(x) = -sin(x)
Combine all these transformations to get:
f(x) = -4sin(x-3)
If it's finding the intercepts then x=-6 and y=-4
Answer:
C) −2.2y−1.8
Step-by-step explanation:
1.2y+4.5-3.4y-6.3=
Combine Like terms:
=−2.2y−1.8
Answer:
5
Step-by-step explanation:
they want you to find the other coordinate with a y value of 3.
You can see the only ones with a y value of 3 is (-7,3) and (5,3)