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Juliette [100K]
3 years ago
14

Helpp, I need to determine the slope and y-intercept for each group. I need to write an equation for the graph in slope-intercep

t form.

Mathematics
2 answers:
jenyasd209 [6]3 years ago
4 0

Answer:

Slope = -2

Y intercept = 4

Equation. y = -2x +5

Step-by-step explanation:

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

Slope = (-2-2)/(3-1) = -4/2 = -2

Y intercept = 4

-2 = (y-3)/(x-1)

-2(x-1) = y-3

-2x +2 = y-3

y = -2x +2 +3

y = -2x +5

Phoenix [80]3 years ago
3 0
Rise over run, -2/1. The slope is -2

Y intercept is 4

Y =-2x + 4
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You have 12 1/3 yards and you need 47 yards how many more yards of fabric do you need
Lady bird [3.3K]

Answer:

34 2/3

Step-by-step explanation:

You need 47 yards. You have 12 1/3

47 - 12 1/3. So we'll break it down.

47 - 12 = 35.

Now, 35 + 12 1/3 would make 47 1/3

So now 35 - 1/3=34 2/3

34 2/3 + 12 1/3 = 47

4 0
3 years ago
Which of the following options correctly represents the complete factored form of the polynomial F(x)=x^4-3x^2-4?
Bumek [7]

Answer:

D

Step-by-step explanation:

Let's substitute a for x²:

x^4 - 3x² - 4

a² - 3a - 4

Now, this looks like something that is much more factorisable:

a² - 3a - 4 = (a - 4)(a + 1)

Plug x² back in for a:

(a - 4)(a + 1)

(x² - 4)(x² + 1)

The first one is a difference of squares, which can be factored into:

x² - 4 = (x + 2)(x - 2)

The second one can also be treated as a difference of squares:

x² + 1 = x² - (-1) = (x + √-1)(x - √-1) = (x + i)(x - i)

The answer is (x + 2)(x - 2)(x + i)(x - i), or D.

6 0
3 years ago
Read 2 more answers
Anyone know how to do this?! Help!
Paraphin [41]

Given:

Vertical angles.

One angle is 85°.

To find:

The measure of ∠1, ∠2 and ∠3.

Solution:

∠2 and 85° are vertically opposite angles and ∠1 and ∠3 are vertically opposite angles.

Vertical angle theorem:

If two lines are intersecting, then the vertically opposite angles are congruent.

⇒ m∠2 = 85°

Sum of the adjacent angles in a straight line = 180°

m∠2 + m∠3 = 180°

85° + m∠3 = 180°

Subtract 85° from both sides.

85° + m∠3 - 85° = 180° - 85°

m∠3 = 95°

By vertical angle theorem:

⇒ m∠1 = m∠3

⇒ m∠1 = 95°

Therefore m∠1 = 95°, m∠2 = 85° and m∠3 = 95°.

3 0
3 years ago
Graph the set on the number line.
Ratling [72]
Here’s the answer w explanation :)

8 0
3 years ago
You buy a sweatshirt for $50, it is on sale for 20% off. What is the discount? What is the sale
Svetradugi [14.3K]

Answer:

Step-by-step explanation:

The discount is $10.

Subtract it from $50 to get $40 as your sale price!

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3 years ago
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