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weeeeeb [17]
3 years ago
11

Which is the function represented by the table?

Mathematics
2 answers:
Lelechka [254]3 years ago
4 0

To find the function, we can try to find the slope intercept form of the table.

Let's use the points (1,-1) and (2,-3) to find the slope.

Slope formula: rise/run

(-3 - - 1)/(2 - 1) = -2/1 = -2

Slope = -2x

Y-intercept = 1

y = -2x + 1

We can plug in a coordinate to check.

Let's use (2,-3).

-3 = 2x + b

Plug in the slope.

-3 = 2(-2) + b

-3 = -4 + b

4 + -3 = 1

b = 1

Therefore, the answer is f(x) = negative 2x + 1.

sesenic [268]3 years ago
4 0

Answer:

A

Step-by-step explanation:

In the table, we are given the points [ (-1, 3), (0, 1), (1, -1), (2, -3) ]

We need to find the slope.

y2-y1/x2-x1

1-3/0-(-1)

-2/1

-2

We are given the point (0, 1) so the y-intercept is 1.

y = -2x + 1

Note that f(x) = y

Best of Luck!

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Been a while since I've done this, but I think I remember what to do here:


The main technique is called "rise over run." The first number, the rise, is how far up the next dot on the right should be. The other number, the run, is how many spaces right the dot should be at. 1+(-2)=-1 and 8+3=11. The next dot on the right should be placed at (11,-1). If you're looking on the left, replace the addition with subtraction. 1-(-2)=3 and 8-3=5. The dot on the left should be (5,3). This means that the three dots on the slope are, in order, (5,3), (1,8), and (11,-1). To find the numbers after the third dot and before the first dot, simply repeat their respective equations.

I hope my memory was correct. Lol
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