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Inessa [10]
3 years ago
8

What is the value of the function when x = 2? y=

Mathematics
1 answer:
serious [3.7K]3 years ago
8 0
Is y also the number 2?
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Help please and thank you: The graph of f x = x2 − 2x − 3 is shown. Which of these describes the effect changing f x to f −2x wi
Lemur [1.5K]

Answer:

Option (C).

Step-by-step explanation:

Graphed function is,

f(x) = x² - 2x - 3

     = x² - 2x + 1 - 1 - 3

     = (x² - 2x + 1) - 4

     = (x - 1)² - 4

f(-2x) = (-2x)² - 2(-2x) - 3

        = 4x² + 4x - 3

        = 4(x² + x) - 3

        = 4[x² + 2(0.5)x + (0.5)²- (0.5)²] -3

        = 4(x + 0.5)² - 1 - 3

        = 4(x + 0.5)² - 4

        = 4[(x - 1) + 1.5]² - 4

Therefore, parent function 'f' will be a horizontal shrink by 4 units and  shifted 1.5 units to the left.

Option (C) will be the answer.

5 0
3 years ago
42,32,30,32,44,36,45,43<br> What is the median
valkas [14]
I got the median was 39 sorry if it is wrong 
4 0
3 years ago
The degree measure of an acute angle in a right triangle is x. If sinx=2/3, determine if each of the following expressions is al
leonid [27]
<h2> ☞ANSWER☜ </h2>

The right triangle has one 90 degree angle and two acute (< 90 degree) angles. Since the sum of the angles of a triangle is always 180 degrees... The two sides of the triangle that are by the right angle are called the legs... and the side opposite of the right angle is called the hypotenuse.

An acute angle is an angle that measures less than 90 degrees. A triangle formed by all angles measuring less than 90˚ is also known as an acute triangle. For example, in an equilateral triangle, all three angles measure 60˚, making it an acute triangle.

8 0
2 years ago
A wire was bent to make a triangular clothes hanger. If the lengths of the sides are 38 cm, 25 cm, 25 cm. Find the minimum lengt
erastovalidia [21]

Answer:

88cm

Step-by-step explanation:

38+25+25=88

6 0
3 years ago
The 1st term in a geometric series is 5 and the common ratio is 2. Find the sum of the 1st 10 terms in the series.
lesya [120]

Answer:

5115

Step-by-step explanation:

a1(1-(r)^n)/1-r

5(1-(2.00)^10)/1-2.00

3 0
3 years ago
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