# algebra

Im having a hard time figuring out this problem:

Use the function, y=-(x+1)^2 +2, to answer the following parts.

Find the y-intercept
y=-(0+1)^2 +2
y=-(1)^2 +2
y=-1+2

Find the x-intercept
0=-(x+1)^2 +2
0=-((x^2)+(1^2))+2
0=-x^2 - 1 + 2
sq.rt(x^2)= sq.rt(1)

Finding the vertex, increasing interval,and decreasing interval.

Is the vertex (-1,2)
Increasing interval (-2,1)
Decreasing interval(1,-2)

Do the x-intercept =1?

1. 👍 0
2. 👎 0
3. 👁 50

for the x-intercept, you started correctly

0 = -(x+1)^2 + 2
(x+1)^1 = 2
take √ of both sides
x+1 = ± √2
x = -1 + √2 or x = -1 - √2

vertex is correct

increasing : x < -1
decreasing : x > 1

( change it to whatever notation you use to state the interval.)

1. 👍 0
2. 👎 0
posted by Reiny

## Similar Questions

1. ### Algebra

Im having a hard time figuring out this problem: Use the function, y=-(x+1)^2 +2, to answer the following parts. Find the y-intercept y=-(0+1)^2 +2 y=-(1)^2 +2 y=-1+2 y=1 is my answer Find the x-intercept 0=-(x+1)^2 +2

asked by Mike on May 4, 2011
2. ### Algebra

Can someone please help me with this problem. I am having a hard time figuring it out.

asked by Help on March 4, 2019
3. ### Math (surveying)

I am having a really hard time figuring this problem out. I need to see how it is worked. THANKS!

asked by Kasey on October 15, 2010
4. ### Math

Please Simplify: (root5 a^7/2)^4 a^3/a^8 I am having a hard time figuring where to start on this problem. Can someone please help me?

asked by Katlyn on June 26, 2009
5. ### Math

I need some help on this function rule question. 8.) Find the function rule. x: -2 -1 0 1 2 y: 9 4 -1 -6 -11 I'm having a really hard time figuring this out. Thnx

asked by Need Help ASAP!!! on March 16, 2017
6. ### Math

I need some help on this function rule question please. 8.) Find the function rule. x: -2 -1 0 1 2 y: 9 4 -1 -6 -11 I'm having a really hard time figuring this out. Thanks to anyone that helps:)

asked by Anonymous on March 16, 2017
7. ### Algebra

Im having a hard time figuring out this problem: Use the function, y=-(x+1)^2 +2, to answer the following parts. The increasing interval and decreasing interval To find both I believe that: increasing : x < -1 decreasing : x > 1

asked by Mike on May 5, 2011
8. ### Vectors

Determine if the line through A(1, 2, 3) and B(4, 8, -3) and the line through C(3, 5, 3) and D(0, 2, 4) intersect. Having a hard time figuring out this problem.

asked by Jason on June 24, 2018
9. ### Math--Calculus

I'm having a tough time figuring out this problem... S(x) = bracket (piecewise function) a + b arcsin*(tan x/tan 66) for 0 ≤ x < 66 24 for 66 ≤ x ≤ 90. Is the function differentiable? Why or why not? Could someone please

asked by Jill on November 13, 2010
10. ### Algebra

Word Problem: Jack mows the lawn in 4 hours, mary mows the lawn in 5 hours. how long will it take them if they mowed the lawn together? I have a hard time figuring out which formula to use to solve a problem in a word problem can

asked by Laura on October 18, 2008

More Similar Questions