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9 votes
9 votes
A linear function goes through the points (3,7) and (k,4). The slope is 3/2. What is the value of k?

User Sheinis
by
2.3k points

1 Answer

12 votes
12 votes

Answer:

The value of k is 1

Step-by-step explanation:

Given that a linear function goes through the points (3, 7) a nd (k, 4).

The slope of this line is given as:


(4-7)/(k-3)

which is the change in y divided by the change in x

The slope is given to be 3/2, therefore, we have:


(4-7)/(k-3)=(3)/(2)

We can solve for k from the above equation


\begin{gathered} (-3)/(k-3)=(3)/(2) \\ \\ k-3=-3*(2)/(3) \\ \\ k-3=-2 \\ \text{Add 3 to both sides} \\ \\ k=-2+3 \\ =1 \end{gathered}

User Chris Lacasse
by
2.8k points
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