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nevsk [136]
2 years ago
11

What is the equation of a line whose slope is -2 and whose y-intercept is 4?

Mathematics
1 answer:
svetoff [14.1K]2 years ago
8 0

Answer:

y=-2x+4

Step-by-step explanation:

if y is 4..it means x intercept is 0

gradient is -2

and we know gradient is the change in y /change in X

so: we let the second intercepts to be (x,y)

so y-4/x-0=-2

multiply by x-0 both sides then collect like terms together

it will be y= -2x+4

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Find the product (2x-1)(-x+2)
DaniilM [7]

Answer:

2x^2+4x+x-2

Step-by-step explanation:

use FOIL (first, outside, inside, last)

(2x-1)(-x+2)

2x(-x)=-2x^2

2x(2)=4x

-1(-x)=x

-1(2)=-2

2x^2+4x+x-2

7 0
3 years ago
Which statement best describes the function represented by the graph
irina [24]

Answer:

the second one seems right but i could be wrong

Step-by-step explanation:

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3 years ago
Can you simplify 6x -x
allsm [11]

Answer:

5x

Step-by-step explanation:

=> 6x-x

<u><em>Taking x common</em></u>

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3 years ago
You are starting a babysitting business to earn enough money to buy a new iPhone 7 Plus, which costs $769. You already have $240
Zina [86]

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Step-by-step explanation:

5 0
2 years ago
Find the volume and surface area of the square pyramid
Montano1993 [528]

The volume and surface area of the pyramid will be 392 / 3 cubic units and 189 square units. Then the correct option is A.

The complete question is attached below.

<h3>What is the volume and surface area of the pyramid? </h3>

Suppose the base of the pyramid has length = L units, width = W units, slant height = K units, and the height of the pyramid is of H units.

Then the volume of the pyramid will be

V = (L × B × H) / 3

The surface area of the pyramid will be

SA = 2(1/2 × B × K) + 2(1/2 × L × K) + (L × B)

Then the volume will be

V = (7 × 7 × 8) / 3

V = 392/3 cubic units

Then the surface area will be

SA = 2(1/2 × 7 × 10) + 2(1/2 × 7 × 10) + (7 × 7)

SA = 189 square units

Then the correct option is A.

More about the volume and surface area of the pyramid link is given below.

brainly.com/question/23302816

#SPJ1

4 0
2 years ago
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