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klio [65]
2 years ago
12

If k is a nonzero constant, what is the slope of the line containing the points (k,2k) and (3k,k)

Mathematics
1 answer:
ivolga24 [154]2 years ago
3 0

Answer:

The slope is -1/2

Step-by-step explanation:

m=\frac{y_2-y_1}{x_2-x_1}\\ \\m=\frac{k-2k}{3k-k}\\ \\m=\frac{-k}{2k}\\ \\m=-\frac{1}{2}

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Sophie [7]
I don’t know anything bro i’m stupid
7 0
3 years ago
Vanessa purchased a smart TV for $1,500 on a payment plan. Four months after purchasing the TV, her balance was $1,200. 7 months
fredd [130]

Answer:

The expression for her balance is "B(t) = -75*t + 1500". It'll take her 20 months to pay off the loan.

Step-by-step explanation:

We are looking for a function that has the following points:

B(0) = 1500

B(4) = 1200

B(7) = 975

Between B(4) and B(7), there was a variation of 3 months and a variation of -225 on her balance, thefore for each month that passed there was a variation of -75. Thefore, the expression for her ballance is:

B(t) = -75*t + 1500

To check if this expression is valid, we will apply the values provided on the problem:

B(0) = -75*0 + 1500 = 1500 (valid)

B(4) = -75*4 + 1500 = -300 + 1500 = 1200 (valid)

B(7) = -75*7 + 1500 = -525 + 1500 = 975 (valid)

When she pays of her loan, B(t) = 0, so we need to solve for t as shown below:

B(t) = -75*t + 1500 = 0

-75*t + 1500 = 0

75*t = 1500

t = 1500 / 75 = 20 months

It'll take her 20 months to pay the loan.

8 0
3 years ago
Help me with this please i need the smartest awser
lutik1710 [3]
-8 you divide and since there is a negative you add a negative


8 0
3 years ago
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a parabola has its vertex at 1,1 and passes through the point -2,-2. Find the equation of this parabola
olasank [31]

Answer:

Step-by-step explanation:1/2 of answer is zero

7 0
3 years ago
Read 2 more answers
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