What is the equation of the line shown in this graph?
2 answers:
Hi Maybe!
Essentially it's a vertical line crossing directly over the number -2 in the x-axis. Also, the question asks for an equation (=). Therefore x = -2.
Here's a tip and mental note you should keep: As I told another fellow student, stuff like y = h (or even y </>/≤/≥ h) all result in horizontal lines with those lines crossing directly over h. x = v (or even x </>/≤/≥ v) all result in vertical lines crossing directly over v.
Essentially it's a vertical line crossing directly over the number -2 in the x-axis. Also, the question asks for an equation (=). Therefore x = -2.
Here's a tip and mental note you should keep: As I told another fellow student, stuff like y = h (or even y </>/≤/≥ h) all result in horizontal lines with those lines crossing directly over h. x = v (or even x </>/≤/≥ v) all result in vertical lines crossing directly over v.
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Answer:
The number of red circles to be added would be equal to 8 times the original amount of red circles
Step-by-step explanation:
Let
x ----> the number of red circles
y ----> the number of blue circles
Originally
----> equation A
How many more circles would need to be added to make the ratio of red to blue 3:1
Let
n ----> the number of additional red circles
----> equation B
substitute equation A in equation B
solve for n
therefore
The number of red circles to be added would be equal to 8 times the original amount of red circles