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3 years ago

10

How do I find the slope of a coordinate plane?

1 answer:

kolezko [41]3 years ago

6 0

Look at the rise over run for it. That is the slope. Btw can u answer my last question thx

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Emily invested in Google Stock (in the thousands of dollars) between the years 2000- 2013. The value of the stock can be modeled

jek_recluse [69]

To find it, evaluate it at the endpoints and the vertex
in form
f(x)=ax²+bx+c
the x value of the vertex is -b/2a

given
c(t)=1t²-10t+76
x value of vertex is -(-10)/1=10

evaluate c(0) and c(13) and c(10)
c(0)=76
c(13)=115
c(10)=76

it reached minimum in 2000 and 2010
porbably teacher wants 2010
the min value is $76

7 0

3 years ago

Is (-2, 6) a solution to this system of equations?

nasty-shy [4]

I think the answer is no. I’m not sure. I’m sorry if incorrect

8 0

2 years ago

hector is lining a youth soccer field from a blueprint drawing.the blueprint is drawn such that 1 inch represents 7 feet.the wid

PtichkaEL [24]

If you mean width, 7 x 7 = 49, so 49 feet, then add on the 3.5 feet due to the 0.5 left over, and you have 52.5

4 0

3 years ago

I need help! Jeff sold half of his comic book collection. Two years later he decides to start collecting again. After buying 12

mylen [45]

Answer:

23 comics before

5 0

3 years ago

which of these shows the result of using the first equation to substitute for y in the second equation, then combining like term

Furkat [3]

Answer:

C. $\Rightarrow \bold{8x = 16}$

Step-by-step explanation:

Given the two equations:

$y=2x ........ (1)\\ 2x+3y=16.......(2)$

To find:

The correct option when value of y is substituted to 2nd equation using the 1st equation.

Solution:

First of all, let us learn about the substitution method.

Substitution method is the method to provide solutions to two variables when we have two equations and two variables.

In substitution method, we find the value of one variable in terms of the other variable and put this value in the other equation.

Now, the other equation becomes only single variable and then we solve for the variable's value.

Here, we have two equations and value of one varible is:

$y=2x$

Let us put value of y in 2nd equation:

$2x+3y=16\\\Rightarrow 2x + 3(2x) = 16\\\Rightarrow 2x + 6x = 16\\\Rightarrow \bold{8x=16}$

So, the correct answer is option C. $\Rightarrow \bold{8x = 16}$

7 0

3 years ago