Answer:
-3
-12
-5
Step-by-step explanation:
A negative number with another negative symbol put onto it is positive because both negative symbols cancel each other out
So -(-3) = 3
-(-12) = 12
-(-5) = 5
Answer:
Option 2
Step-by-step explanation:
If two x values are the same with different ys, it can't be a function.
Therefore option 2 is incorrect
The equation of the quadratic function in standard form as required in the task content is; f(x) = -x² + 12x - 43.
<h3>Standard form equation of a quadratic function.</h3>
It follows from the task content that the standard form equation of the quadratic function is to.be determined.
Since the standard form equation can be derived from the vertex form equation as follows;
f(x) = a (x - h)² + k
f(x) = a (x - 6)² - 7
Hence, to find the value of a, Substitute x = 8 and f(x) = -11 so that we have;
-11 = a (8 - 6)² - 7
-11 = 4a - 7
4a = -4
a = -1.
Hence, the equation in vertex form is; f(x) = -1 (x -6)² - 7 and when expressed in standard form we have;
f(x) = -1(x² - 12x + 36) - 7
f(x) = -x² + 12x - 43
Therefore, the required equation in standard form is; f(x) = -x² + 12x - 43.
Read more on quadratic functions;
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Angelica needs to sell 20 TVs.
Steps:
Step 1: You divide 5,000 and 250.
5,000/250 = 20
Check: You multiply 250 and 20.
250 x 20 = 5,000
Answer:
48.00
Step-by-step explanation: