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3 years ago

What is the slope of the line given by the equation y = -3x?

Mathematics

2 answers:

Ratling [72]3 years ago

8 0

Answer:

The correct option is B.

Step-by-step explanation:

The given equation is

$y=-3x$ .... (1)

The slope intercept form of a line is

$y=mx+b$ .... (2)

Where, m is slope and b is y-intercept.

From (1) and (2), we get

$m=-3,b=0$

The slope of the line is -3.

Therefore the correct option is B.

s2008m [1.1K]3 years ago

7 0

The answer to this question would be B, -3. The reason for this is because when you have an equation in slope intercept form, it would be y = mx + b. In this case your b is equal to 0 so you have only y = mx. The variable m represents the slope, which is in this case, equal to -3. Hope this helps. Please rate, leave a thanks, and mark a brainiest answer. (Not necessarily mine). Thanks, it really helps! :D

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1 year ago

Gerardo has just invested in a bond worth $470 that is expected to increase in value by 6% per year. Write the equation used to

Viefleur [7K]

Answer:

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

A = P(1+r/n)^nt

Where

A = total amount in the account at the end of t years

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n represents the periodic interval at which it was compounded.

P represents the principal or initial amount deposited

From the information given,

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3 0

3 years ago

Which is the value of this expression when a=5 and k=-2

Zinaida [17]

Answer:

Option C is correct.

Step-by-step explanation:

We are given the expression:

$(\frac{3^2a^{-2}}{3a^{-1}})^k$

The value of a =5 and k = -2

Putting the values and solving

$=(\frac{3^2*5^{-2}}{3*5^{-1}})^-2\\=(\frac{3^{2-1}}{5^{-1+2}})^-2\\=(\frac{3^{1}}{5^{1}})^-2\\\\=(\frac{3}{5})^-2\\if \,\,a^{-1} \,\,then\,\, 1/a\\=\frac{(3)^{-2}}{(5)^{-2}}\\ Can\,\,be\,\,written\,\,as\\\\=\frac{(5)^{2}}{(3)^{2}} \\=\frac{25}{9}$