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1 answer:
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Answer:
f(x) = -4x² + 19x - 18
Step-by-step explanation:
i) If it is translated 2 units in the positive x direction, therefore we use f(x-2)
f(x) = 2x² - 9.5x + 6
If it is then translated 3 units in the positive y, we add 3 to the input function to get:
ii) stretched vertically by a factor of 2, we multiply the function by 2 to get:
iii) reflected across the x-axis
we multiply the parent function by –1, to get a reflection about the x-axis.
Here's the method on the first one (36)
The ratio is
, hence if we call 
the number below 
, we will have 
hence 
I_72__I_36_I_24_I_12_I
<span>I_126_I_63_I_42_I_21_I
</span>
The ratio is
I_72__I_36_I_24_I_12_I
<span>I_126_I_63_I_42_I_21_I
</span>