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3 years ago

F(x)=(x-2)(x+4) what is the y-intercept and x-intercept

Mathematics

1 answer:

GarryVolchara [31]3 years ago

6 0

Answer:

x-int=-8, y-int=2,-4

Step-by-step explanation:

for the x-int

you set x to 0 then solve the equation to get -8

for the y-int

you set y(or in this case f(x)) to 0 then solve. You solve this by spilting this into 2 linear equations; x-2=0 and x+4=0, then you solve them both to get the two y-intercepts, 2 and -4

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3 years ago

Read 2 more answers

Please answer it quickly

LUCKY_DIMON [66]

Hey there!

This is the formula:

V=πr²h

V=π(7)²5

V=49π5

V=245π

V≈769.7 ft³(cubic feet)

Hope everything is clear.

Let me know if you have any questions!

Always remember: Knowledge is power!

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3 years ago

Which graph represents the function?

Setler79 [48]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

1) $f(x)=(x+2)^2$ -----> For the interval (-∞,-1)

Note The value of x=-1 is a open circle ( is not included)

This is a vertical parabola open upward

The vertex is a minimum

The vertex is the point (-2,0)

2) $f\left(x\right)=\left|x\right|+1$ ----> For the interval [-1,1]

Note The value of x=-1 and x=1 are closed circle ( both values are included)

This is an absolute function open upward

The vertex is the point (0,1)

3) $f(x)=-\sqrt{x}$ -----> For the interval (1,∞)

Note The value of x=1 is a open circle ( is not included)

The value of f(x) is negative for all values of x

therefore

The graph in the attached figure

6 0

3 years ago

Given g(x) = -3x – 4, find g(1).<br> What is g(1)

lidiya [134]

Answer:

-7

Step-by-step explanation:

It just means put 1 for x so -3-4=-7

4 0

3 years ago

Write the ratio in the lowest terms. 20 ft to 12 ft

jenyasd209 [6]

Answer:

5 ft : 3 ft

Step-by-step explanation:

Ratios are always fractions so we can turn this to a fraction; $\frac{20}{12}$

Then to reduce to it's lowest terms divide by a number that can divide both of them. Lets divide by 2 since it can divide the two numbers

$\frac{10}{6}$

We can still divide by 2 since it can divide both numbers = $\frac{5}{3}$

Since no number can divide both of them at the same time the answer is $\frac{5}{3}$ OR 5 ft : 3 ft

5 0

4 years ago