RemarkIt's asking you to complete the square to find the vertex.
Solvey = -2x^2 + x + 3 Put brackets around the first 2 terms.
y = (-2x^2 + x) + 3 Pull out the 2.
y = -2(x^2 - 1/2 x) + 3 Be especially observant of the sign on 1/2x Divide the middle term's number by 2 and square it.
y = -2(x^2 - 1/2 x + [(1/2) / 2]^2 ) + 3 [1/2 divided by 2 is 1/4. (1/4)^2 = 1/16; 2*(1/16) = 1/8
y = - 2(x^2 - 1/2 x + (1/4)^2 ) + 3 + 1/8
y = -2(x - 1/4)^2 + 3 1/8
CommentAnswer to your question. The maximum value (3 1/8) is above the y axis. That means the graph of the equation crosses the x axis twice. I'm going to include the graph because in answering the question, there is no harm in seeing the graph.
Answer:
<h2>Can you please post the complete answer.....</h2>
The answers to all the parts given below
<h3 /><h3>What is direct proportion?</h3>
Direct proportion or direct variation is the relation between two quantities where the ratio of the two is equal to a constant value. It is represented by the proportional symbol.
Given: There are 16 cups of frozen strawberries in a gallon.
16 cups = 1 gallon
let x cups = 3 gallons
Now, using direct proportion
16/x= 1/3
x = 16 × 3
x = 48 cups of frozen strawberries.
Now, chandra needs to make 48 cups of punch.
=48/6
=8
She needs to multiply amount of each ingredients in the original recipe by 8
The original recipe calls for 1 cup of frozen strawberries.
So, chandra will need to use= 1*8= 8 cups
Learn more about this concept here:
brainly.com/question/23743453
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Answer:
f^-1 (x) = -21x + 7 is your answer
Answer:
<h2>0</h2>
Step-by-step explanation:
all the outcomes you can get from rolling a dice twice are
2,3,4,5,6,7,8,9,10,11,12
15 is nowhere in those numbers so the probability of getting a sum of 15 is 0