Answer:
B) Its final coordinates are (8,-6)
Step-by-step explanation:
1. Translated 1 unit up and 4 units left
(-2,7) becomes (-6, 8)
2. Reflected about the x-axis
(-6,8) becomes (-6, -8)
3. Rotated 90° anticlockwise about the origin
(-6, -8) becomes (8, -6) because when rotating 90 degrees anticlockwise about the origin, point A (x,y) becomes point A' (-y,x). In other words, switch the x and y and make y negative.
Answer:
The area of the yard is;
5x^4 -2x^3+9x^2+50
Step-by-step explanation:
Here, we want to calculate the area of the yard
Mathematically, this can be calculated as the difference between the area of the plot and the base area of the house
So, we simply proceed to calculate a subtraction here;
Thus, we have this as;
5x^4 + 9x^2-4x -(2x^3-4x-50)
= 5x^4 + 9x^2-2x^3+ 50
Rearranging this, we have;
5x^4 -2x^3+9x^2+50
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