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Leto [7]
3 years ago
7

Y=89.99+36.55(x-1) as a Y=ax+b equation

Mathematics
1 answer:
natulia [17]3 years ago
3 0

Answer:

y=89.99+36.55\left(x-1\right)  can be written as  y=36.55x+53.44 which is into the form y=ax+b.

Step-by-step explanation:

Considering the expression

y=89.99+36.55\left(x-1\right)

y\:=89.99+36.55x-36.55

y=36.55x+53.44

writing into the form of the equation

y=ax+b

so

y=36.55x+53.44

Here:

  • a = 36.55x
  • b = 53.44

Therefore,  y=89.99+36.55\left(x-1\right)  can be written as  y=36.55x+53.44 which is into the form y=ax+b.

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A rectangular swimming pool is 4 ft deep. One side of the pool is 3.5 times longer than the other. The amount of water needed to
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The monthly cost (in dollars) of a long-distance phone plan is a linear function of the total calling time (in minutes). The mon
kkurt [141]

The monthly cost will be $17.14

Step-by-step explanation:

Given that the monthly cost (in dollars) of a long-distance phone plan is a linear function of the total calling time (in minutes) then this can be presented in a table form as;

<u>Time in minutes (x)</u>        <u>Cost in dollars (y)</u>

50                                          $12.55

102                                         $ 17.23

Take the values as ordered pairs to represent coordinates for points that satisfy the linear function

(50,12.55)  and (102,17.23)

Finding the slope of the graph using these points

slope,m=Δy/Δx

m=Δy=17.23-12.55 =4.68

Δx=102-50=52

m=4.68/52 =0.09

Finding the equation of the linear function using m=0.09, and point (50,12.55)

m=Δy/Δx

0.09=y-12.55/x-50

0.09(x-50)=y-12.55

0.09x-4.5=y-12.55

0.09x-4.5+12.55=y

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So for 101 minutes , the cost will be;

y=0.09*101 +8.05

y=9.09+8.05 = $17.14

Learn More

Linear functions : brainly.com/question/11052356

Keyword : linear function

#LearnwithBrainly

5 0
3 years ago
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