2 years ago

Help please

Mathematics

1 answer:

ddd [48]2 years ago

7 0

Answer:

B. When the peak temperature is 40°C, 72 units of electricity are used on average.

Step-by-step explanation:

We see the relationship is closer to linear in the interval 30 to 40

Approximate points:

(30, 34) and (34, 54)

The slope of the line:

m = (54 - 34)/(34- 30) = 20/4 = 5

The line is:

y - 34 = 5(x - 30)
y = 5x - 116

At x = 40, the value of y would be:

y = 5*40 - 116 = 84

The closet option is B

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