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translations teacher voice - translations along a vector \\(\\langle a,…

Question

translations
teacher voice - translations along a vector \\(\langle a, b \
angle\\) can be expressed using a rule \\((x, y) \to (x + a, y + b)\\).
example 3 - writing a translation rule
write a rule for the translation of \\(\triangle lmn\\) to \\(\triangle lmn\\).
solution
to go from \\(l\\) to \\(l\\): move 2 units left and 6 units up. so, the rule is:
\\(\text{rule: } (x, y) \to (x - 2, y + 6)\\).
\\(\square\\) visit www.bigideasmathvideos.com to watch the flipped video instruction for the \try this\ problem(s) below.
try this video for example 3 - write a rule for the translation of \\(\triangle abc\\) to \\(\triangle abc\\).
3)
\\(\

$$\begin{array}{c|c} & y \\\\ \\hline & a \\\\ & \\\\ & 2 \\\\ \\leftarrow & \\\\ & \\downarrow \\\\ & 2 \\\\ & 4 \\\\ & 6 \\\\ & x \\\\ \\end{array}$$

\\) with points \\(a\\), \\(c\\), \\(a\\), \\(c\\), \\(b\\), \\(b\\)
explain 1d \\(\triangleright\\) performing translations
\\(\square\\) visit bim.easyaccessmaterials.com, read integrated mathematics 1 lesson 11.1, then read the section below.
teacher voice - to translate a figure in the coordinate plane, apply the translation rule to each of the vertices of
the figure.
example 4 - translating a figure in the coordinate plane
graph \\(\triangle rst\\) with vertices \\(r(2, 2)\\), \\(s(5, 2)\\), and \\(t(3, 5)\\) and its image after the
translation \\((x, y) \to (x + 1, y + 2)\\).
solution
graph \\(\triangle rst\\). to find the coordinates of
the vertices of the image, add 1 to the \\(x\\)-
coordinates and add 2 to the \\(y\\)-
coordinates of the vertices of the
preimage. then graph the image.
\\(\text{rule: } (x, y) \to (x + 1, y + 2)\\)
\\(r(2, 2) \to r(3, 4)\\)
\\(s(5, 2) \to s(6, 4)\\)
\\(t(3, 5) \to t(4, 7)\\)
integrated math 1 b credit 4

Explanation:

Step1: Identify coordinates of A

Original point $A=(0,4)$; Image $A'=(2,3)$

Step2: Calculate x-change

$\Delta x = 2 - 0 = 2$

Step3: Calculate y-change

$\Delta y = 3 - 4 = -1$

Step4: Form translation rule

$(x,y) \to (x+\Delta x, y+\Delta y)$

Answer:

Rule: $(x,y) \to (x+2, y-1)$