It takes 4 ounces of blue paint and 3 ounces of red paint to make Patrick's favorite shade of purple.
Multiply the numbers by 2. This will not affect the proportion. Thus, the new statement will be true respect to the original one.
It takes 8 ounces of blue paint and 6 ounces of red paint to make Patrick's favorite shade of purple. That's answer choice B.
Multiply the original numbers by 5. Again, this will not affect the proportion, meaning that the statement will remain true.
It takes 20 ounces of blue paint and 15 ounces of red paint to make Patrick's favorite shade of purple. This is answer choice D.
Thus, the answers are answer choices B and D.
Let
y------> the amounts (in liters) of yellow paint
b-----> the amounts (in liters) of blue paint
we know that

so

therefore
<u>the answer is</u>

The correct answer is shown in attached figure
To find the correct graph, we should study the continuity of the function
Check the continuity at x = -2
from the left ⇒⇒ f(-2) = 1/2 * -2 + 3 = 2
from the right ⇒⇒ f(-2) = 2
∴ The function is continuous at x = -2
Check the continuity at x = 3
from the left ⇒⇒ f(3) = 2
from the right ⇒⇒ f(3) = 2*3 - 3 = 3
∴ The function is jump discontinuous at x = 3
From the previous results the correct graph is the last as shown in attached graph.