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faltersainse [42]
3 years ago
10

HELP PLEASE ASAP IM SO CONFUSED!!!!!!!!

Mathematics
1 answer:
liubo4ka [24]3 years ago
8 0

The slope-intercept form:

y=mx+b

m - slope

b - y-intercept → (0, b)

We have the points (-4, -6) and (2, 6). Substitute:

m=\dfrac{6-(-6)}{2-(-4)}=\dfrac{12}{6}=2\\\\y=2x+b

Put the coordinates of the point (2, 6) to the equation of a line:

6=2(2)+b\\\\6=4+b\qquad|-4\\\\2=b\to b=2

<h3>Answer: y = 2x + 2</h3>
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(TEN POINTS)
Rainbow [258]
F(-1)= -3 is (-1,-3) and f(2) = 6 is (2,6) where f(x) = y
y=mx + b is the slope-intercept form whereas m equals the slope (rate of change) and b equals the y-intercept (initial amount/what y is when x is 0.)

First, we need to find the slope between the two points (-1,-3) and (2,6). To find the slope we could use one of it's formulas \frac{y^2 - y^1}{x^2 - x^1}.  
1. (-1,-3)
2. (2,6)
\frac{6 - -3}{2 - -1} → \frac{9}{3} → \frac{3}{1}

The slope is 3 (\frac{3}{1}). Thusly, y = 3x + b

To find out the y-intercept, we can reverse the slope. [Note: This \frac{3}{1} is in \frac{rise}{run} where rise is 'y' and run is 'x'. Reversed would be \frac{-3}{-1} ]. Take the second ordered pair and use our reversed slope on it until we get 0 for x. 

(2, 6) ⇒ (2 - 1, 6 -3) ⇒ (1, 3) ⇒ (0,0)

Y-intercept is 0. Therefore, y= 3x + 0 [NOTE: y = f(x), so if you want it in function notation form it's just f(x) = 3x + 0.]
6 0
3 years ago
Assume that the random variable X is normally distributed with mean μ=80 and standard deviation σ=18. Find the 11th percentile f
choli [55]
<span>The value you are looking for is 70 - 8.4 = 61.6 Hope it helps

</span>
6 0
3 years ago
Graph the function f(x)=(x+1)(x-2)
creativ13 [48]
F(x) = (x + 1)(x - 2)
f(x) = x(x - 2) + 1(x - 2)
f(x) = x(x) - x(2) + 1(x) - 1(2)
f(x) = x² - 2x + x - 2
f(x) = x² - x - 2

6 0
3 years ago
When given a radical to simplify, if no number appears in the index location then it is a one.
slamgirl [31]

Answer:

that is false! im pretty sure!

let me know if u need any more help cutie!

Step-by-step explanation:

6 0
3 years ago
What is 4 less than the quotient of twice a number and 3 translated to an algebraic expression?
Drupady [299]

Answer:

(2x/3) - 4

Step-by-step explanation:

"twice a number" ---> 2x

"quotient of twice a number and 3" ---> 2x/3

"4 less than" -->  (2x/3) - 4

Could also be written as (2/3)x - 4

5 0
3 years ago
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