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3 years ago

Find the equation of the line with slope 2 and y-intercept (0,−1).

Mathematics

1 answer:

Doss [256]3 years ago

8 0

Answer:

2x-y = 1

Step-by-step explanation:

Equation of the line is y-y1 = m (x-x1), where m is the slope and (x1,y1) is a point that lies on the line.

Equation of the given line is,

y-(-1) = 2 *(x-0)

y+1 = 2x

2x-y = 1

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Please please help thanks

Gwar [14]

Answer is 2nd option

B. WYZ = WZX = ZYX

6 0

3 years ago

What best describes the end behavior of the graph of f(x)=-x^4+5x-5

Neko [114]

Answer:

It describes multiplication

Step-by-step explanation:

As you can see its 5x-5 (the x is say "by" or "of), So when you look at it you can clearly see it's multiplication.

8 0

3 years ago

What is the total surface area of the square pyramid in square inches

sladkih [1.3K]

7x9=63
63÷2= 31.5x4
126= area of the triangles

7x7= 49= area of the square.

126+49= 175 ft

8 0

3 years ago

If y = 3x^3 - 2x and dx/dt equals 3, find dy/dt when x = -2. Give only the numerical answer. For example, if dy, dt = 4, type on

Nadya [2.5K]

Answer:

$\frac{dy}{dt} = 102$

Step-by-step explanation:

step(i)

Given function y = 3 x³ - 2 x ... (i)

Differentiating equation (i) with respective to 'x'

$\frac{dy}{dx} = 3 (3 x^{2} ) - 2(1)$

Given x = -2

$(\frac{dy}{dx} ) x_{=-2} = 3 (3 (-2)^{2} ) - 2(1)$

$(\frac{dy}{dx} ) x_{=-2} = 36 -2 =34$

Step(ii):-

we know that

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

Given $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

substitute values $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

⇒ $34 = \frac{\frac{dy}{dt} }{3 }$

cross multiplication , we get

$\frac{dy}{dt} = 34( 3 ) = 102$

Final answer:-

$\frac{dy}{dt} = 34( 3 ) = 102$

8 0

3 years ago

Jim has 12 colored papers 8 bows 2 different colored markers and 2 envelopes How many different cards can Jim make

ikadub [295]

384 because 12*8=96*2=192*2=384

8 0

3 years ago