Answer:
1. y = 9(x+1/2)^2 -13/4
Step-by-step explanation:
y = 9x^2 + 9x – 1
first isolate the x terms
y = 9(x^2 +x) -1
then add 1/4 inside the brackets to make it a perfect square trinomial (half of the coefficient of the x term squared is how we get 1/4)
since we just added 1/4 we need to subtract what we just added to balance the equation. so 1/4 times 9 is 9/4 ( the number we just added to the equation). then you subtract 9/4 outside of the brackets.
y = 9(x^2 +x +1/4) -1 -9/4
then simplify
y = 9(x+1/2)^2 -13/4
3,628,800 is the correct answer
Answer:
d. d=2
Step-by-step explanation:
Answer:
K= -5
Steps:
<u>P</u><u>u</u><u>t</u><u> </u><u>t</u><u>o</u><u>g</u><u>e</u><u>t</u><u>h</u><u>e</u><u>r</u><u> </u><u>l</u><u>i</u><u>k</u><u>e</u><u> </u><u>t</u><u>e</u><u>r</u><u>m</u><u>s</u>
-5k + 2k = 40 - 25
-3k = 40 - 25
-3k = -15
<u>D</u><u>i</u><u>v</u><u>i</u><u>d</u><u>e</u><u> </u><u>b</u><u>o</u><u>t</u><u>h</u><u> </u><u>s</u><u>i</u><u>d</u><u>e</u><u>s</u><u> </u><u>b</u><u>y</u><u> </u><u>-</u><u>3</u>
Then you get your answer.
Answer:
C (3,14)
Step-by-step explanation:
y=6x-4
y=7x-7
6x-4=7x-7
-x=-3
x=3
y=6*3-4=14