What is the missing statement in step 3 of the proof?
Given. Z1 is complementary to 22.
22 is complementary to 23.
Prove mZ1 = m23
mz1 = m_2
m21 + m22 = 90°
m22 = m23
111222 + m23 = 180°
OWN
Statements
1. 21 is comp to 22
2. 2 is comp to 23
3. ?
4 m21-90°-m22
5. m 2+m_3=90°
6. m_3=90°-m22
7. m21-m_3
Reasons
1. given
given
3. def. of comp. ZS
subtr. equality prop
5. def. of comp. 25
6 subtr. equality prop
7 trans. prop

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.

the first option is the answer.