Bellwork – Unit 11 – Day 3
1. Mark the correct relationships
Zeros Initial Value Max/Min
(x+3)(x-1)
(x+12)^2 +5
x^2 +4x + 6

2. Is the function increasing or decreasing over each of the following intervals?

Increasing Decreasing
-3 < x < -2
-2 < x < -1
0 < x < 2

3. Complete the table below.
Statement Reason
5(n+1) = 2(n+10) Given
5n +5 = 2n + 20
3n + 5 = 20
3n = 15
n = 5

4. Use the function, f(x)= 2x^2+3x-2 to find f(2).

5. Change the following into vertex form: (x-h)^2 + k
x^2 + 6x + 2 = 0

my guess would be b and d, but i didn’t actually get out the pen and paper. lol

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true

3 qrs + 3/2 xy hope this : /

step-by-step explanation: