F(x) = 2x² + 7x - 5
g(x) = -8x² - 3x + 5
g(x) + f(x)
-8x² - 3x + 5 + 2x² + 7x - 5
-8x² + 2x² - 3x + 7x + 5 - 5
-6x² + 4x + 0
-2x(3x - 2)
The scale factor is -2. The answer is choice A
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How did I get this answer? By picking any pair of preimage and corresponding image points. Let's pick on preimage point A and its paired image value A'.
Note how the x coordinate jumps from -11 to +22. So we multiplied by -2 to do this jump. We can see that 22/(-11) = -2 is another way to get this. Similarly, the same happens to the y coordinates as well: -14/7 = -2.
In short, you multiply the preimage coordinate by the scale factor -2 to get the corresponding image coordinates. Points B and C will follow the same pattern.
Answer
C. third choice
SSS congruence postulate
I hope this helps you
Area of parallelogram =base×height
Area =87×18,6
Area =1618,2
Answer:
In the word “PROBABILITY”
Total number of letters =11
Number of vowels (o, a, i, i) = 4
Thus, the required probability = 4/11
