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Ksenya-84 [330]
3 years ago
12

Please help with #27 and please explain

Mathematics
1 answer:
NISA [10]3 years ago
7 0

Answer:

(a) 3 added to twice the value of n

(b) T = 2n +3

Step-by-step explanation:

Given

Table #27

Solving (a): First, we express as an equation

The table illustrates a linear function; so, we calculate the slope (m) first

m = \frac{T_2 - T_1}{n_2 -n_1}

Where:

(n_1.T_1) = (4,11)

(n_2.T_2) = (8,19)

So:

m = \frac{T_2 - T_1}{n_2 -n_1}

m = \frac{19 - 11}{8-4}

m = \frac{8}{4}

m = 2

The equation is then calculated using:

T = m(n  - n_1) + T_1

T = 2(n  - 4) + 11

T = 2n  - 8 + 11

T = 2n +3

In words, the equation is: <em>3 added to twice the value of n</em>

Solving (b): As an equation.

This has been solved in (a) above:

T = 2n +3

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