Use the image to answer the question.

A coordinate plane's x-axis ranges from negative 3 to 9 and its y-axis ranges from negative 2 to 6, both by 1-unit increments. 3 points are marked and plotted forming triangle upper A upper B upper C.

Translate triangle ABC
by 3 units to the left and 5 units down. Which of the following are the coordinates of new triangle A′B′C′
?

(1 point)
Responses

A′(7,0)
, B′(5,−4)
, C′(10,−2)
upper A prime left parenthesis 7 comma 0 right parenthesis , upper B prime left parenthesis 5 comma negative 4 right parenthesis , upper C prime left parenthesis 10 comma negative 2 right parenthesis

A′(−1,2)
, B′(−3,−2)
, C′(2,0)
upper A prime left parenthesis negative 1 comma 2 right parenthesis , upper B prime left parenthesis negative 3 comma negative 2 right parenthesis , upper C prime left parenthesis 2 comma 0 right parenthesis

A′(1,0)
, B′(−1,−4)
, C′(4,−2)
upper A prime left parenthesis 1 comma 0 right parenthesis , upper B prime left parenthesis negative 1 comma negative 4 right parenthesis , upper C prime left parenthesis 4 comma negative 2 right parenthesis

A′(1,10)
, B′(−1,6)
, C′(4,7)

1 answer

To translate triangle ABC by 3 units to the left and 5 units down, you can follow these steps:

  1. Translation to the left by 3 units means you subtract 3 from the x-coordinates of each vertex.
  2. Translation down by 5 units means you subtract 5 from the y-coordinates of each vertex.

If we denote the original coordinates of points A, B, and C as \( A(x_A, y_A) \), \( B(x_B, y_B) \), and \( C(x_C, y_C) \), the new coordinates after translation would be:

  • \( A'(x_A - 3, y_A - 5) \)
  • \( B'(x_B - 3, y_B - 5) \)
  • \( C'(x_C - 3, y_C - 5) \)

However, since we don't have the original coordinates given, we need to evaluate the given responses as potentially translated points.

Let's analyze each of the options based on the expected transformation.

  1. Option 1: A′(7,0), B′(5,−4), C′(10,−2)

    • These points are not possible since they appear to be to the right (positive x) and have no relation to a leftward shift.
  2. Option 2: A′(−1,2), B′(−3,−2), C′(2,0)

    • These points might represent a shift but again do not account for any specific points.
  3. Option 3: A′(1,0), B′(−1,−4), C′(4,−2)

    • This set of points falls into a range indicative of movement, but again with no specific original points to compare.
  4. Option 4: A′(1,10), B′(−1,6), C′(4,7)

    • Similar to the other sets but remains higher in y-coordinates which would suggest no downward shift occurred.

Since we don't have the original triangle's coordinates, we should rely on which set of transformed points seems most reasonable given a standard movement scenario across a range. Identifying logical coordinates after such movements typically would implicate options 2 and 3 are the most plausible considering their applicable negative movements in y-coordinates.

Notably, a final selection based on general observation and the rules of coordinate transformations would indicate option 3: A′(1,0), B′(−1,−4), C′(4,−2) as most indicative of a leftward and downward translation consistent with mathematical expectations of triangular coordinates.