A=(2,4); B=(3,9); C=(4,1)
A'=(4,-2); B'=(9,-3); C'=(1,-4)
All the points P=(x,y) change to P'=(y,-x), this corresponds to a rotation counterclockwise about the origin, then:
Answer: Triangle ABC is
First box: rotated counterclockwise
Second box: 90° about the origin
to form triangle A'B'C'
Answer:
5
Step-by-step explanation:
you add then all together to get 5
Answer:
180
180 because all three angles shows only because it is traingle
Given:
The values of a linear function are 
and 
.
To find:
The linear function.
Solution:
If a linear function passes through two points, then the equation of the linear function is:
The values of a linear function are and . It means the function passes through the points (-9,8) and (0,1). So, the equation of the linear function is:
Adding 8 on both sides, we get
Putting 
, we get
Therefore, the required linear function is .
An altitude is a line that connects the vertex angle to the opposite side, or base at a 90 degree angle, therefore, if the length of the two sides quadrupled, the length of the altitude would also have to quadruple.
