(PLEASE HELP ME) A line passes through the points (-3,-1)

1 answer:

Lyrx [107]3 years ago

4 0

Answer:

-5/2

Step-by-step explanation:

to find the slope of the line, you have to do y1 - y2, over x1 - x2. That means that you do -5/2, and so that is the answer

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nadezda [96]

Answer:

$\frac{5}{2}$

Step-by-step explanation:

First, add two to both sides to get $9^{x-1}=27$

There are two ways to solve this from here

Think about what power you would have to raise 9 to to get to 27. $9^{\frac{1}{2}}$ = 3 and $3^3=27$ . So, multiplying the powers (because it is a power to a power) you get $9^{\frac{3}{2}}=27$ . This means that $x - 1 = \frac{3}{2}$ or x = $\frac{5}{2}$ .
Take the log of both sides.