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myrzilka [38]
3 years ago
12

If y=x^2+2x+3 find the falue of Y when x=3

Mathematics
2 answers:
yarga [219]3 years ago
5 0
Y=18 is the correct answer
dmitriy555 [2]3 years ago
4 0
If y=x^2+2x+3 when x=3 then y=........

Plug in 3 where x is stated.
Work:

y=(3)^2+2(3)+3
y=9+2(3)+3
y=9+6+3
y=18

Answer: 18
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IrinaVladis [17]

The line has a positive slope. Let's look at all the slopes:

1) -3

2) -3

3) 3

4)3

Which ones are positive? That's right, 3 and 4. We don't know which equation would be the equation of the line. That's where the other information comes in.

The line intersects the y-axis at at a point that has a negative y-coordinate. Lets write the last two equations in slope-intercept form.

1) y = -3/2x - 5/2

2) y = -3/2x + 5/2

We have to graph both of the lines now. The graphs are at the very bottom. Take a look at them. In the first one, the y-intercept is a negative and in the second one, the y-intercept is positive.

The third one AKA 3x + 2y = -5 is the equation of the line. I hope this helps! Let me know if I got it wrong or if you need any more help.

5 0
3 years ago
Mrs. O'Malley is setting up for a party. Each adult will get 2 glasses, and each child will get 1 glasses. There are 8 Adult and
malfutka [58]

1 adult=2

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hope I was helpful

5 0
3 years ago
8th grade math Ik but I do need help though
kramer

Answer:

x =-4

Step-by-step explanation:

4x+9 = -2x-15

Add 2x to each side

4x+2x +9 = -2x+2x-15

6x+9 = -15

Subtract 9 from each side

6x +9-9=-15-9

6x = -24

Divide each side by 6

6x/6 = -24/6

x = -4

7 0
3 years ago
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levacccp [35]
I think the answer is D

                                                                    
6 0
3 years ago
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What are the factors of that 697
Rainbow [258]
The factors of 697 or 6,9,7? 
5 0
3 years ago
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