The answer is true because they both have the 90 degree box and a mark in the line indicating they are the same length.
Do u have a formula chart if not that would help you get your answer
Answer:

Step-by-step explanation:
We are given an expression to solve for the displacement (x), so in order to find velocity (v), we need to differentiate the function.
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Solving :
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⇒ 
⇒ 
⇒ 
Using this equation, we can find the velocity if a value of t is given.
Y=2x
3x+2y=21
3x+2(2x)=21
3x+4x=21
7x=21
x=3
y=2(3)
y=6