1) find the coordinate of the image of point (1,2) translated left 2 units and reflected over the x -axis?
1) (1,2) translated two units to the left would be (-1,2)...right? "Translated two units left..." means move horizontally - the negative x direction - 2 units. "Reflect over the x-axis" means you pretend the point (-1,2) is fastened to the x-axis by a pivoting rod and you just flip it over the horizontal... the x-axis. You'll end-up at (-1,-2) 2) (2,-4). Let's see: over 2 units to the right, down 4 units. Flip it over the x-axis: (2,4) 3) The mid-point will be the point with (x,y,z) values equal to the average of the given 2 x's (7 and -3... the average is 2), the 2 y's (3 and 1 => a y-value of 2) and the average of the 2 z's ( -4 and 0 yield an average of -2) The mid-point is (2,2,-2) 4) Just increase the y-value by 3: You get (2,2) 5) Every coordinate value becomes 3 times the original. (5,-1) becomes (15, -3) 6) (5,2) translated down 4 units is (5,-2. (5,-2) translated translated left 1 unit is (4,-2)
Algebra help 1st correct answers 10 points?
What is the reciprocal of -5? (Points : 1) Option A: -1/5 Option B: 1/5 Option C: 1 Option D: 5 2. The point (1, 5) is translated 6 units left. What are the coordinates of the image point? (Points : 1) (-5, -5) (1, -1) (7, 5) (1, 11) 3. The point (4, -9) is rotated 180º about the origin. What are the coordinates of the image point? (Points : 1) (-9, 4) (-4, -9) (-4, 9) (9, -4)
Help with math homework please 10 points?
1) Point A(8,-4) is reflected over the x-axis. Write the coordinates of A. a. (-8,4) b. (-8,-4) c. (8,-4) d. (8,4) 2) The vertices of a triangle are P(-2,-4), Q(2,-5), and R(-1,-8). Name the vertices of the image reflected in the y-axis. a. P’(-4,-4), Q’(2,-5), R’(-1,-8) b. P’ (-2,4) , Q(2,5) , R’(-1,8) c. P’(2,-4), Q’(-2,-5), R’(1,-8) d. P’(2,4), Q’(-2,5), R’ (1,8) 3) Find the image of O(-1,-3) after two reflections, first in the line y= -2, and then in line x=-2 A.(-3,-1) B.(-3,-5) C.(-1,-3) D.(-2,-2) 4) Translate point P(3,3) left 1 unit and up 4 units. What are the coordinates of the image P’? A.(2,-1) B.(4,7) C.(2,7) D.(4,-1) 5) Write a rule to describe the translation of a point from (-3,3) to (-2,2). a. (x,y) -> (x-1, y+1) b. (x,y) -> (x+1, y+1) c. (x,y) -> ( x-1, y-1) d. (x,y) -> (x+1, y-1) 6) The point C(3,-1) is translated to the left 4 units and up 1 unit. a. write a rule to describe the translation. b. what are the coordinates of the image point C’? a. (x,y) -> (x-1, y+1); (7,-2) b. (x,y) -> (x+1, 7+1); (-1,0) c. (x,y) -> (x+4, y-1); (7,0) d. (x,y) -> (x-4, y+1); (-1,0) 7) ANGLE PQR vertices P(5,-1), Q(0,8), and R(7,5). It is translated right 3 units and up 6 units. Find the coordinates of P’Q’ and R’ a. P’(8,5), Q’(3,14), R’(10,11) b. P’(2’5), Q’(-3,14), R’(4,11) c. P’ (8,-7), Q’(3,2), R’(10,-1) d. P’ P’(2,-7), Q’(-3,2), R’(4,-1) 8) What are the coordinates of the point H(-2,4) after a rotation of 270 degrees about the orgin? a. (-2,-4) b. (4,2) c. (-4,-2) d. (2,-4) 9) The vertices of a triangle are P(-3,8), Q(-6,-4), and R(1,1). Name the vertices reflected in the x-axis. a. P’(3,8), Q’(6,-4), R’(-1,1) b. P’(-3,8), Q’(-6,-4) R’(1,1) c. P’(-3,-8), Q’(-6,4), R’(1,-1) d. P’(3,-8), Q’(6,4), R’(-1,-1) 10) The vertices of a triangle are P(-7,-4), Q’(-7,-8), R’(3,-3). Name the vertices of the image reflected in the line y=x a. P’(4,7), Q’(8,7), R‘(3,-3) b. P’(4,-7) Q’(8,-7), R‘(3,3) c. P’(-4,7), Q’(8,-7), R’(-3,3) d. P’(-4,7), Q’(-8,7), R’(-3,-3)
1. A dilation has center (0, 0). Find the image of the point B (-2, 6) for the scale factor of 5?
1. a) 2. b) 3. d) 4. a) 5. a) 6. d) 7. b) 8. b) can't get onto to question 9 or above. the link isn't working