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3 years ago

Writing and evaluating a function that models a real-world situation: advanced

1 answer:

3 0

So in this equation we're given that Ravi puts $350 into his account, this means that when W=0, S=350. Or that the y-intcpt(b) is 350.

when we find an equation we use slope intcpt formula:

y = mx + b

M in this case is the slope or the amount S

changes for every value of W. So if Ravi adds $70 every day that means the amount of money in his account increases by $70 everyday, so we can say m= 70

So putting together the equation with b= 350 and m = 70 we get :

$S = 70W + 350 \:$

Calculating for 17 weeks or W = 17

$S = \: 70 \times 17 \: + 350 \\ S = 1190 \: + 350 = 1540$

Ans: $1540

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Step-by-step explanation:

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This can be shown graphically too:

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4 years ago

Find the coordinates of the intersection of the diagonals of parallelogram WXYZ with the following vertices: W (-1, 7), X (8, 7)

Nataliya [291]

The intersection of the diagonals of a parallelogram is always the midpoint of each of the diagonals, which means all we have to do is grab two opposite vertices and average their coordinates.

Let's use W and Y. 

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So our point is (2.5,2.5) 

We could also use X and Z. 
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(7 + -2)/2 = 2.5 

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Alenkinab [10]

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3 years ago

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svet-max [94.6K]

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4 years ago

What is the value of X in the equation 4 3/10(2 2/5x+ 5 1/2)= 1/2( -3 3/5x + 1 1/5)?

Irina18 [472]

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Step-by-step explanation:

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