Question
Some plastic chairs are designed to be stackable. After the first chair in the stack, each additional chair adds the same amount to the overall height of the stack. The table below shows the total height of the stack when there are 1, 2, 3, and 4 chairs in the stack. Which function models the height of a stack of n chairs?
Number of chairs, n 1 2 3 4
Height of stack (inches) 28 31 34 37(1 point)
Responses
f(n)=28−3(n−1) where n≥1 and n∈Z
f left parenthesis n right parenthesis equals 28 minus 3 left parenthesis n minus 1 right parenthesis where n greater than or equal to 1 and n is in the integers
f(n)=−3+28(n−1) where n≥1 and n∈Z
f left parenthesis n right parenthesis equals negative 3 plus 28 left parenthesis n minus 1 right parenthesis where n greater than or equal to 1 and n is in the integers
f(n)=3+28(n−1) where n≥1 and n∈Z
f left parenthesis n right parenthesis equals 3 plus 28 left parenthesis n minus 1 right parenthesis where n greater than or equal to 1 and n is in the integers
f(n)=28+3(n−1) where n≥1 and n∈Z
Number of chairs, n 1 2 3 4
Height of stack (inches) 28 31 34 37(1 point)
Responses
f(n)=28−3(n−1) where n≥1 and n∈Z
f left parenthesis n right parenthesis equals 28 minus 3 left parenthesis n minus 1 right parenthesis where n greater than or equal to 1 and n is in the integers
f(n)=−3+28(n−1) where n≥1 and n∈Z
f left parenthesis n right parenthesis equals negative 3 plus 28 left parenthesis n minus 1 right parenthesis where n greater than or equal to 1 and n is in the integers
f(n)=3+28(n−1) where n≥1 and n∈Z
f left parenthesis n right parenthesis equals 3 plus 28 left parenthesis n minus 1 right parenthesis where n greater than or equal to 1 and n is in the integers
f(n)=28+3(n−1) where n≥1 and n∈Z
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