All categories

3 years ago

Which equation passes through the points ( -4,1 ) (-8,13 )

Mathematics

1 answer:

Mashutka [201]3 years ago

4 0

Answer:

y= = -3x -11

STANDARD FORM: 3x+y= -11

Step-by-step explanation:

You might be interested in

Struggling, can anyone help me out on these three functions? It would be much appreciated. Thanks so much!! :)

Maurinko [17]

Answer:

1. a) Not function

b) Domain is all real numbers greater than or equal 2 (x ≥ 2)

c) The range all real numbers ( -∞ < y < ∞)

2. a) Function

b) The domain is all real numbers (-∞ < x < ∞)

c) The range is all real number greater than or equal -4 (y ≥ -4)

3. a) Not function

b) domain is {-3 , -2 , -1 , 0 , 1 , 3}

c) The range is {-2 , -1 , 1 , 2 , 3 , 5}

Step-by-step explanation:

1. Not a function because some x has more than one corresponding y

Note: If we draw vertical line and move it left and right over the curve it will cut the cure in more than one point that means one x has more than one y

2. Function because every x has one corresponding y

3. Not function because some x have more than one corresponding y like

(-3 , -2) (-3 , 2) and (3 , -1) (3 , 2)

8 0

3 years ago

Margot is looking at some information for the obstacle course she is interested in completing. The x-coordinate is the number of

blagie [28]

Answer: f(8) = 6.25(1.1)^7 ; f(8) = 12.179

Step-by-step explanation: (I got it right on the test)

(1, 6.25), (2, 6.875), (3, 7.5625), (4, 8.31875)

r= 1.1

f(1) = 6.25 / starting number

1. Since it is multiplying each number by 1.1 it is using the Geometric Explicit Formula:

f(n)= f(1) x r ^n-1

f(8) = 6.25 x 1.1 ^(8-1)

f(8) = 6.25 x 1.1 ^7

f(8) = 6.25 x 1.9487171

f(8) = 12.179

3 0

2 years ago

I don’t understand this at all someone help me

marishachu [46]

The answer is 2x-3, you multiply the x value by 2 and then subtract 3 which gives you your y value

3 0

2 years ago

.5n-9=4n+5 pls i need help

Oksana_A [137]

Hi there,

5n - 9 + 4n + 5
5n - 4n = 5 + 9

Hence, N = 14

Hope this helps :)

3 0

2 years ago

Mason has a collection of 49¢ stamps, 20¢ stamps, and 34 stamps worth $23.55. He has 56 total 49¢ and 20+ stamps and the number

tatuchka [14]

Answer:

Mason has

16 20¢ stamps;
25 3¢ stamps;
40 49¢ stamps.

Step-by-step explanation:

Let x be the number of 20¢ stamps, then the number of 3¢ stamps is x + 9.

Mason has 56 total 49¢ and 20¢ stamps, then the number of 49¢ stamps is 56 - x.

Amounts:

in 49¢: $49(56-x)$ cents;
in 20¢: $20x$ cents;
in 3¢: $3(x+9)$ cents.

Total amount:

$49(56-x)+20x+3(x+9);$
$23.55.

Hence,

$49(56-x)+20x+3(x+9)=2,355\\ \\2,744-49x+20x+3x+27=2,355\\ \\-49x+3x+20x=2,355-2,744-27\\ \\-26x=-416\\ \\26x=416\\ \\x=16$

Mason has

16 20¢ stamps;
25 3¢ stamps;
40 49¢ stamps.

5 0

2 years ago