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topjm [15]
2 years ago
14

The line shown above has a y-intercept of? I need help fast please

Mathematics
1 answer:
Amiraneli [1.4K]2 years ago
6 0

Answer:

y-intercept is 1

Step-by-step explanation:

The line connects to the y-axis at 1

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Please help me if you know how to do this!
lukranit [14]

Question 21

Let's complete the square

y = 3x^2 + 6x + 5

y-5 = 3x^2 + 6x

y - 5 = 3(x^2 + 2x)

y - 5 = 3(x^2 + 2x + 1 - 1)

y - 5 = 3(x^2+2x+1) - 3

y - 5 = 3(x+1)^2 - 3

y = 3(x+1)^2 - 3 + 5

y = 3(x+1)^2 + 2

Answer: Choice D

============================================

Question 22

Through trial and error you should find that choice D is the answer

Basically you plug in each of the given answer choices and see which results in a true statement.

For instance, with choice A we have

y < -4(x+1)^2 - 3

-7 < -4(0+1)^2 - 3

-7 < -7

which is false, so we eliminate choice A

Choice D is the answer because

y < -4(x+1)^2 - 3

-9 < -4(-2+1)^2 - 3

-9 < -7

which is true since -9 is to the left of -7 on the number line.

============================================

Question 25

Answer: Choice B

Explanation:

The quantity (x-4)^2 is always positive regardless of what you pick for x. This is because we are squaring the (x-4). Squaring a negative leads to a positive. Eg: (-4)^2 = 16

Adding on a positive to (x-4)^2 makes the result even more positive. Therefore (x-4)^2 + 1 > 0 is true for any real number x.

Visually this means all solutions of y > (x-4)^2 + 1 reside in quadrants 1 and 2, which are above the x axis.

5 0
3 years ago
Help please!!<br>Find the area of the figure!<br>​
coldgirl [10]

Answer:

Step-by-step explanation:

(in X is 400)   (in division is 0.000625)  (in + its agin 400) ( and in minus is -40)

hope this help you if not i tried. :)

3 0
3 years ago
There are 207 students in 9 classes at east middle school at this rate how many students are in 6 classes
patriot [66]

Answer:

138 students

Step-by-step explanation:

207/9 = 23

23*6=138

4 0
2 years ago
Read 2 more answers
Duik<br>Solve the equation.<br>y + 3 = -y + 9<br><br><br>​
s2008m [1.1K]

Answer:

y=3

Step-by-step explanation:

7 0
3 years ago
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Which of the following sets represents a function?
gogolik [260]
It would be D 
Your welcome ;)
5 0
3 years ago
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