Look at lines PR←→ and ST←→ shown. Suppose a dilation with a scale factor of 2 and a center of dilation at point P is performed on QR¯¯¯¯¯¯¯¯ and ST¯¯¯¯¯¯¯. Which statements are true about the resulting images Q′R′¯¯¯¯¯¯¯¯¯¯ and S′T′¯¯¯¯¯¯¯¯¯¯? Select all that apply.
1. QR and Q′R′ are collinear.
2. ST and S′T′ are collinear.
3. QR and Q′R′ are not collinear, but are on parallel lines.
4. ST and S′T′ are not collinear, but are on parallel lines.
5. The measure of the length of Q′R′ is two times the measure of QR
6. The measure of the length of S′T′ is one half the measure of ST
7. If a segment is drawn from point P to point Q′, point Q will be the midpoint.
8. If a segment is drawn from point P to point S′, point S will be the midpoint.