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m_a_m_a [10]
3 years ago
5

Find the slope and y-intercept for this table.​

Mathematics
1 answer:
labwork [276]3 years ago
8 0

Answer:

See below:

Step-by-step explanation:

To find the slope, we use the following formula:

\frac{y_{2} - y_{1} }{x_{2} - x_{1} }

For this case, we can use (6,60) as the first set of points.

We can use (4,70) as the second set of points.

Now, we can use the formula, 70-60 is for the top of the fraction (10)

We can do 4-6 to find the bottom, which is (-2)

Now, if we add the fraction back we get -> 10/-2 which is -5 for slope!

To find out the y intercept, it in simple words is "What is y when x is 0?".

We can do that by using the slope intercept formula: y=mx+b.

Once we insert our slope which is -2 we get: y=-2x+b

We can now substitute a point, lets use (6,60) so we can find out b.

We now get the equation: 60=-5(6)+b.

If we solve for that we get 90!

Once we input that, we get, y=-5x+90

Now we put in x as 0 and we get our y intercept as 90!

If this answer helped, consider marking as brainliest!!

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F(x) = x². What is g(x)?<br> A.g(x)=(1/3x)^2<br> B:g(x)=1/3x^2<br> C:g(x)=1/9x^2<br> D:g(x)=3x^2
lana [24]

Answer:

B

Step-by-step explanation:

We know that 3² = 9, so for g(x) to pass through (3,3), we need to multiply x² by 1/3, giving option B.

8 0
2 years ago
A business was valued at £17000 at the start of 2011. In 6 years, the value of this business was raised to £186000. This is equi
NemiM [27]

The business was valued at £17000 at the start of 2011. In 6 years, the value of this business was raised to £186000. This is equivalent to a yearly increase of 49.0%.

Given that, A=£17000, P=£186000, r=x%, t=6 years

<h3>What is compound interest?</h3>

Compound interest is the addition of interest to the principal sum of a loan or deposit, or in other words, interest on principal plus interest.

We know that, A=P(1+\frac{r}{100} )^{n}

Wow, 186000=17000(1+\frac{x}{100} )^{6}

⇒10.94=(1+\frac{x}{100} )^{6}

⇒1.4891=1+\frac{x}{100}

⇒0.4891=\frac{x}{100}

⇒x=48.91%~49.0%

Therefore, the value of x is 49.0%.

To learn more about compound interest visit:

brainly.com/question/13001287

#SPJ1

7 0
2 years ago
The Square sand pit in park lot has an area of 16 ft. There is a rope along one side of the pit. How long is the rope?
slavikrds [6]

Answer:

ydhhh

Step-by-step explanation:

1)tiff

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4 0
3 years ago
Plese help i need the answer
Sladkaya [172]

Using linear function concepts, it is found that:

a) The initial value is of 3 and the rate of change is of 20.

b) The rate of change means that for <u>each hour, the cost increases by 3 Dhs</u>, while the initial value means that <u>a flat fee of 20 Dhs is paid</u>.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and also can be considered as the initial value.

In this problem, the function that gives the charge C for renting a bicycle for h hours is:

C(h) = 3h + 20

Item a:

Comparing to the standard function, we have that:

  • The initial value is of 3 and the rate of change is of 20.

Item b:

The rate of change means that for <u>each hour, the cost increases by 3 Dhs</u>, while the initial value means that <u>a flat fee of 20 Dhs is paid</u>.

You can learn more about linear function concepts at brainly.com/question/24808124

6 0
2 years ago
The Hudson Bay tides vary between 3 feet and 9 feet. The tide is at its lowest point when time (t) is 0 and completes a full cyc
BaLLatris [955]

Answer:

y(t)= 6-3cos(\dfrac{2\pi}{14}t )

Step-by-step explanation:

The function that could model this periodic phenomenon will be of the form

y(t) = y_0+Acos(wt)

The tide varies between 3ft and 9ft, which means its amplitude A is

A =\dfrac{(9-3)ft}{2} \\\\\boxed{A = 3ft}

and its midline y_0 is

y_o=3+3 \\\\\boxed{y_o= 6ft}.

Furthermore, since at t=0 the tide is at its lowest ( 3 feet ), we know that the trigonometric function we must use is -cos(\omega t).

The period of the full cycle is 14 hours, which means

\omega t =2\pi

\omega (t+14)= 4\pi

giving us

\boxed{\omega = \dfrac{2\pi}{14}.}

With all of the values of the variables in place, the function modeling the situation now becomes

\boxed{y(t)= 6-3cos(\dfrac{2\pi}{14}t ).}

8 0
3 years ago
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