The graph of f(t) = 3 • 2^t shows the value of a rare coin in year t. what is the meaning of the y-intercept? a. when it was purchased (year 0), the coin was worth $3. b. in year 1, the coin was worth $6. c. when it was purchased (year 0), the coin was worth $2. d. every year the coin is worth 3 more dollars.

The answer is the option A

When it was purchased (year ), the coin was worth

Step-by-step explanation:

we know that

The y-intercept of a function is the value of the function when the value of the independent variable  is equal to zero

In this problem we have

the independent variable is the variable t

so

Find the y-intercept

For ------> year zero

Find the value of the function

That means ----> When it was purchased (year ), the coin was worth

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

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step-by-step explanation: