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Annette [7]
2 years ago
9

A line passes through the point (2, 7) and has a slope of 4. What is the equation of the line?

Mathematics
1 answer:
mamaluj [8]2 years ago
4 0
Y = mx + b
y = 4x + b
Plug in point
7 = 4(2) + b, b = -1
Equation: y = 4x - 1
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Write a polynomial function in standard form with zeros at −3, −1, and 1.
Annette [7]

Answer:

f(x) = {x}^{3}  + 3 {x}^{2}  - x -3

Step-by-step explanation:

The given polynomial has zeros at:

x=−3, x=−1, and x=1.

This means that:

x+3, x+1, and x-1 are all factors of this polynomial.

The factored form of this polynomial is :

f(x) = (x + 3)(x + 1)(x - 1)

We expand the last two factors using difference of two squares.

f(x) = (x + 3)( {x}^{2}  - 1)

f(x) = x ( {x}^{2}  - 1) + 3( {x}^{2}  - 1)

f(x) = {x}^{3}  - x+ 3 {x}^{2}  -3

f(x) = {x}^{3}  + 3 {x}^{2}  - x -3

This is the standard form because it is now in decreasing powers of x.

8 0
3 years ago
I need help please Asap
s2008m [1.1K]

Answer:

Step-by-step explanation:

1.

Equation one:

x = -5, x = -1 (Both are real)

Equation two:

No real solutions

Equation three:

x = -3 (Real)

Equation four:

No real solutions

2.

The easiest way to figure out if an equation has real solutions is to factor it. If it is factorable, then it has real solutions. If it isn't, then it doesn't have real solutions.

4 0
2 years ago
Write an equation represents the number of bracelets b Carly will have if she works t hours making bracelets in the next 2 weeks
xxMikexx [17]
2(1b × t) ÷ 2 = b

or

2b × 2t ÷2 = b

PLEASE GIVE BRAINLIEST
3 0
3 years ago
1.<br> Explain why the diagram shows that 6 (3 + 4) = 6*3 + 6*4
anygoal [31]

Answer:

I'm using algebra format ok so if u get it wrong pls dont kill me. 6(3+4) = 6*3 + 6*4 brackets in algebra means times so 6 times 3 + 6 times 4 done

5 0
3 years ago
the set below only contains which types of numbers {-1,5,1/2,15,3.75,36,square root 81,100 are they irrational numbers rational
nika2105 [10]

Answer:

I believe Irrational numbers, That's the answer I used and got it correct!

Step-by-step explanation:

5 0
3 years ago
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