There are 13 left-handed and 21 right-handed spirals on the cacti in the photograph. What is special about these numbers?
A. They are consecutive terms in the Fibonacci sequence.
B. The value of the 21st term of the Fibonacci sequence is 13.
C. They are consecutive terms in the pyramidal sequence.
D. The value of the 21st term of the pyramidal sequence is 13.

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Step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )