The method of completing the square can be used to determine the vertex of a function. he unknown value is -162
<h3>Completing the square of a function</h3>
The method of completing the square can be used to determine the vertex of a function.
Given the quadratic function
-2x² + 36x
-2(x²-18)
Complete the square
-2(x² - 18x + ( -9)²+ 9²)
-2(x-9)² + -2(81)
-2(x-9)² - 162
Compare
On comparing with the expression, you can see that the unknown value is -162
Learn more on completing the square here: brainly.com/question/13981588
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Answer:
D. y= -4x +5
Step-by-step explanation:
- The equation can be transformed by doing some algebra.
- If we solve the second term of the equation -4(x-2)= 8 - 4x, then we have (this is done by distributing the multiplication into the two terms: remember that the product of -4x(-2)=+8 because the product of two negative numbers is a possitive number).
- Then, by subtracting both sides 3, we have . Rearranging terms in the right side, we have , which is option D.
Decimal=0.5 percent=50%
Hope this helped!
Answer: Red
Step-by-step explanation:
The y intercept is -2 so its either green or red
the slope is positive so its red
Answer:
-6.77
Step-by-step explanation:
-3.45+4.23=0.78
+7.55=-6.77