Answer:
A. △ABC ~ △DEC
B. ∠B ≅ ∠E
D. 3DE = 2AB
Step-by-step explanation:
Transformation includes modifying the shape or size of a figure, using techniques such as reflection, dilation, rotation, and translation.
In this scenario, triangle ABC undergoes reflection and dilation to create triangle DEC. Each side of triangle DEC measures two-thirds the length of its corresponding side in triangle ABC. Thus, the following statements about the triangles are true:
i. △ABC ~ △DEC
ii. ∠B ≅ ∠E
iii. 3DE = 2AB
If the point (4,-1) is part of the graph of y = f(x), then the related point on the graph of y = g(x) would be: (4,-1/2), (2,-1), (-1,-1), (1,4), (4,-4), (-12,1)
=> (4,-1/2)
=> (2,-1)
=> (-1,-1)
=> (1,4)
=> (4,-4)
=> (-12,1)
Further explanation
-
Dividing the function by 2 results in all the y-values being halved as well. Thus, to determine the new point, we take the y-value (-1) and halve it to arrive at -1/2. Hence, the new point is (4,-1/2).
- When 2 is subtracted from the function's input, it shifts all x-values up by 2. Therefore, to adjust the x-value (4), we add 2 to get 2. Thus, the new point is (2,-1).
- Making the function's input negative alters each x-value by multiplying by -1. Consequently, to find the new point, we take x-value (4) and apply -1 to get -1. Therefore, the new point is (-1,-1).
- Multiplying the function's input by 4 results in each x-value being divided by 4. To find the new x-value from 4, we divide by 4 to get 1. Hence, the new point becomes (1,4).
- When multiplying the entire function by 4, each y-value is increased fourfold. Thus, the original value of 4 becomes -4, making the new point (4,-4).
- By multiplying the entire function by -1, each y-value is also multiplied by -1. As a result, the new y-value becomes 1, leading to the new point (-12,1).
Learn more
- Learn more about corresponding point
- Learn more about point on the graph
- Learn more about the graph
Answer details
Grade: 9
Subject: mathematics
Chapter: corresponding point
Keywords:
corresponding point, the graph, point on the graph
Answer:
Assuming the null hypothesis—indicating there is no discrepancy between the cell phone expenses of in-state versus out-of-state individuals.
Step-by-step explanation:
Answer:
A is TRUE (44 in² * 2 = 88 in²).
B is FALSE because x(x-3) = 88 for the rectangle or x(x-3)/2 = 44 for the triangle.
C is TRUE if x(x-3) = 88 leads to x² - 3x - 88 = 0.
D is TRUE:
x² - 3x - 88 = 0.
Δ = 9 + 4 * 88 = 361 = 19².
Thus, x = 11 or x = -8 (we discard negative values).
E is FALSE as 11 * 4 ≠ 88.
Step-by-step explanation:
Please correct me if I'm mistaken.