Which is NOT a correct way to describe the function {(-3, 2), (1,8), (-1, 5), (3, 11)

Mathematics

1 answer:

lora16 [44]3 years ago

5 0

Answer:

Step-by-step explanation:

The graph appears to have function inputs and outputs reversed. The other representations are correct.

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I don’t get this one but the question was something about finding the equation.

Alina [70]

9514 1404 393

Answer:

y = -(x -3)^2 +2

Step-by-step explanation:

The vertex form of the equation for a parabola is ...

y = a(x -h)^2 +k

where the vertex is (h, k) and the value 'a' is a vertical scale factor.

The value of 'a' can be found by looking at the y-value of points ±1 either side of the vertex relative to the vertex. Here, the vertex y-value is +2 at x=3, and either side goes down 1 unit (to y=1) for 1 unit to the right or left. So, a = -1.

Using the values we've read from the graph for the vertex (h, k) = (3, 2) and the scale factor a = -1, we can write the equation as ...

y = -(x -3)^2 +2

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3 years ago

A piece of ribbon is 1 metre in length. Sasha cuts of some of the

Varvara68 [4.7K]

Answer:

high jatdog

Step-by-step explanation:

napaka pogi ko ayieeee

7 0

3 years ago

What is the y and x intercept for f(x)=3x-2 find f(-5)

masya89 [10]

Answer: The y- intercept is -2. The x-intercept is 2/3

The attachment shows the solutions.

Step-by-step explanation: The y-intercept is the "b" term in the slope-intercept form of the equation. To find the x-intercept, substitute 0 for the output and solve for x.

0 = 3x -2 . Add 2 to both sides

2 = 3x . Divide both sides by 3

2/3 = x the x-intercept is 2/3

To find f(-5) substitute -5 for x and solve.

f(-5) = 3(-5) -2

f(-5) = -15 -2

f(-5) = -17