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vredina [299]
3 years ago
15

Which of the graphs below correctly solve for x in the equation −x2 + 5x + 6 = 3x − 2? Graph of quadratic opening downward and l

inear sloping up to the right. They intersect at point negative 2, negative 8 and point 4, 10. Graph of quadratic opening upward and linear sloping up to the right. They do not intersect at point. Graph of quadratic opening downward and linear sloping down to the left. They intersect at point negative 0.9, 0.7. Graph of quadratic opening downward and linear sloping up to the right. They intersect at point negative 1.3, negative 2.2 and point 3.23, 11.73.

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
3 0
The first one. They intersect at (-2,-8) and at (4,10).
You can find this graphically or algebraically.
Graphically by inputting both equations and using the intersect function.
Or algebraically by setting the equation to 0.
Finding the x intercepts then by factoring.
Then inputting the x values into either original equation to find the y intercepts for each.

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Which equation represents a proportional relationship between the x and y values?
Airida [17]

Answer:

D) y=-2x

Step-by-step explanation:

A linear relationship is of the form y=mx+b, where, m is the slope and b is the y-intercept (constant).

For a proportional relationship, the value of b=0 and thus it is of the form y=mx

Let us check each option and express it in the form above.

Option A:

y=2

This can be written as y=0x+2. So, b\ne 0.

Since, b \ne 0, therefore, it is not a proportional relationship.

Option B:

y=14x+1

Here, b=1. So, b\ne 0.

Since, b \ne 0, therefore, it is not a proportional relationship.  

Option C:

y=x-4

Here, b=-4. So, b\ne 0.

Since, b \ne 0, therefore, it is not a proportional relationship.  

Option D:

y=-2x

This can be rewritten as y=-2x+0

There is no y-intercept on this. So, b=0

Since,b = 0, therefore, it is a proportional relationship.

Therefore, the correct option is D.

8 0
3 years ago
Read 2 more answers
I need help with 25 and 26 plzz
Paha777 [63]

Answer:

Step-by-step explanation:

25.

Combine like terms.

4t+7=-33

subtract 7 from both sides

4t=-40

divide both sides by 4

t=-10

26.

Subtract 2a from both sides

5=7a-16

add 16 to both sides

21=7a

divideby 7 on both sides

a = 3

I'd suggest getting the app photomath or using cymath to help you with these problems. they give you the answer and how to get it step by step

8 0
2 years ago
Laila made 12 muffins. Shannon made 10 muffins how many more did Laila make?
sleet_krkn [62]

Answer:

2 more muffins

Step-by-step explanation:

<em>Since, </em>

<u><em>Given that:</em></u>

<em>Laila made 12 Muffins</em>

<em>Shannon made 10 Muffins</em>

<u><em>Question to Answer:</em></u><em>
How many more did Laila make?</em>

<u><em>Solve:</em></u>

<em>Since it asking how many more laila made that means we have to subtract to find how many more laila has.</em>

<em>As given, we know that Laila made 12 Muffins and Shannon made 10 Muffins then:</em>

<em>Laila Muffins - Shannon Muffins</em>

<em>Which also means:</em>

<em>12 - 10</em>

<em>Which,</em>

<em>12 - 10 = 2</em>

<em>Hence, Laila makes 2 more Muffins than Shannon</em>

<em />

<u><em>Kavinsky</em></u>

7 0
2 years ago
Read 2 more answers
Leanne multiplied 8x4.3 and got 32.24
Ket [755]
The correct answer is 34.4
3 0
2 years ago
Read 2 more answers
I must be s.tupid but someone plzzzzzzzz help!
Gala2k [10]

Answer:

=

Step-by-step explanation:

8.5 is also 8 and 1/2, it just has negative signs infront

3 0
3 years ago
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