All categories

3 years ago

What is the function rule for the line

Mathematics

1 answer:

ivolga24 [154]3 years ago

7 0

Answer:

The function rule is f(x) = 4x - 2.

Step-by-step explanation:

Using the points (2,6) and (0,-2) we see that the slope is

(6 - -2) / (2-0) = 8/2

= 4

Using the slope-intercept form y = m x + c (where m = slope and c= y-intercept we see that :-

f(x) = 4x - 2

You might be interested in

What are the factors of 9a-3

yulyashka [42]

Answer:

9, -3

Step-by-step explanation:

7 0

3 years ago

What is the rate of change for this imagine

GaryK [48]

3, -1

Step-by-step explanation:

It goes 3 to the positive side

and one down side

4 0

3 years ago

Read 2 more answers

the current temperature in small town - 20 degrees Fahrenheit this is 6 degrees less than twice the temperature that was six hou

Vlad [161]

For problems like this we can use algebra to help us, the farenheight 6 hours ago was:
(2xt)-6=-20
We have to balance the sides out, first we minus 6
2xt=-26
Now we can divide by 2
t=-13

We now know the temperature 6 hours ago was -13

6 0

2 years ago

Twelve percent of U.S. residents are in their forties. Consider a group of nine U.S. residents selected at random. Find the prob

miskamm [114]

Answer:

The probability is 28 % ( approx )

Step-by-step explanation:

Since, there are only two possible outcomes in every trails ( residents are in their forties or not ),

So, this is a binomial distribution,

Binomial distribution formula,

Probability of success in x trials,

$P(x)=^nC_x p^x q^{n-x}$

Where, $^nC_x=\frac{n!}{x!(n-x)!}$

p and q are probability of success and failure respectively and n is the total number of trials.

Let X be the event of resident who are in his or her forties.

Here, p = 12% = 0.12,

⇒ q = 1 - p = 1 - 0.12 = 0.88,

n = 9,

Hence, the probability that two or three of the people in the group are in their forties = P(X=2) + P(X=3)

$^9C_2 (0.12)^2 (0.88)^{9-2}+^9C_3 (0.12)^3 (0.88)^{9-3}$

$=36(0.12)^2 (0.88)^7+84(0.12)^3 (0.88)^6$

$=0.279266611163$

$\approx 0.28$

$=28\%$

7 0

3 years ago

Evaluate the expression below<br> a - cd for a = -2, c = 5, d = -3|

Svetllana [295]

-2-(5•-3)= -2-(-15)
= -2+15
=13

4 0

3 years ago