23) El largo de la figura corresponde a: a) \( m+3 \) (b) \( 16 m+3 \) c) \( m+9 \) d) \( 4 m+9 \) 24) El ancho de la hgura corresponde a: a) \( m-9 \) b) \( 4 m-9 \) c) \( m-3 \) (d) \( 4 m-3 \)

8. Dans le plan muni d'un repère \( (0, \vec{i}, j) \), on donne le point \( A(-2 ; 3) \), les vecteurs \( \begin{array}{l}\vec{u}=\vec{i}+\vec{j} \text { et } \vec{v}=\vec{i}-\vec{j} \\ 1^{\circ} \text { Démontrer que le couple }(\vec{u}, \vec{v}) \text { est une base } \\ \text { du plan. }\end{array} \).

10. Find the equations of straight lines each of which is parallel to and at a distance of \( \sqrt{5} \) from the line \( x+2 y-7=0 \).

5. Find the coordinates of the vertices of image of triangle \( A B C \) with vertices \( (2,2),(2,4),(6,3) \) afrer the specified dilation and draw the image. \( k=2 \), centre of dilation is origin

arallelogram B. square C. trapezold \( \quad \) D. rectangle raph the circle and find the equation. Use graphing paper. he endpoints of the radius are at \( (-4,3) \) and \( (4,-5) \) and the center lies at QIV.

8. If \( \vec{P} \vec{Q}=P Q \), what is the angle between \( \vec{P} \) and \( \vec{Q} \) ?