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3 years ago

6

PLZ HELP!!! what r the answers??

1 answer:

vekshin13 years ago

3 0

Answer:

Question 2 the answer is C) y = -3/2x + 2

Question 3 the answer is D) x = 4

Step-by-step explanation:

To solve either we first need to know that parallel lines have the same slope.

So in #2 we know that the new line will also have a slope of -3/2. Therefore, we can use that along with the point given in the problem in point-slope form to get the new equation.

y - y1 = m(x - x1)

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

y + 1 = -3/2x + 3

y = -3/2x + 2

And for #3, we know that we have a vertical line due to the fact that it is expressed as x = a number. Therefore, we must have the same in the answer. D is the only one that has such an answer.

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What is the first step in solving the quadratic equation -5x2+8=133?

ololo11 [35]

Answer:

b. The first step in the equation solving is subtracting 8 from both sides of the equation.

Step-by-step explanation:

Here, the given quadratic equation is : $-5x^2 + 8 = 133$

Let us try and solve this given equation.

$-5x^2 + 8 = 133 \\\implies -5x^2 + 8 - 8 = 133 -8\\\implies -5x^2 = 125\\\implies x^2 =\frac{125}{-5} = -25\\\implies x^2 = -25 = (5i)^2$

So, x = ± 5i

Hence, as we can see here, the first step in the equation solving is subtracting 8 from both sides of the equation.

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3 years ago

Which has both 4 & -4 as possible values of y? <br><br> A.) 8<br> B.) 64<br> C.) 16

sweet [91]

Answer:

may be 16

Step-by-step explanation:

I can't under stand but 4×4=16

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3 years ago

The black graph is the graph of y=f(x). Choose the equation for the red graph.<br> Please help!!

yan [13]

Answer:

B

Step-by-step explanation:

The black graph is the graph of y=f(x).

The red graph is the reflection of the black graph across the y-axis.

A. $y=f(x-1)$ determines the translation of the graph $y=f(x)$ one unit to the right.

B. $y=f\left(\dfrac{x}{-1}\right)$ determines the reflection of the graph $y=f(x)$ across the y-axis.

C. $y-1=f(x),\ y=f(x)+1$ determines the translation of the graph $y=f(x)$ one unit up.

D. $\dfrac{y}{-1}=f(x),\ y=-f(x)$ determines the reflection of the graph $y=f(x)$ across the y-axis.

8 0

3 years ago

Y = 3x^2 - 4x<br> 27 + y = 14x

Hatshy [7]

Step-by-step explanation:

move the 27 to the other side of the equation like this

$y = 14x - 27$

use this equation and substitute it into the y value of the first equation

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3 years ago

Find the solution for the following equation using the algebraic method: 3x^2+10x=8

likoan [24]

The answer should be 0.875.

6 0

3 years ago