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MATH 1 SEM 2 REVIEWER
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Gravity
Key Concepts:
Terms in this set (15)
SOLVE USING ELIMINATION
Equation A: 10x - 6y = 20
Equation B: 2x + Y = 15
Multiply Equation B with 6 or Multiply Equation B with 5
SOLVE USING SUBSTITUTION
Equation A: x = -6y + 20
Equation B y = -2x + 15
Equation A = -6(-2x + 15) or
Equation B - -2(-6y + 20)
Describe the graph of the given inequality:
5y + 2x < 10
negative slope, leans to the left, broken line, shade down
Describe the graph of the given inequality:
5y - 2x > 10
positive slope, leans to the right, broken line, shade up
Parallel Lines
Lines don't intersect, there's no solution
Angle
Formed by 2 rays having a common vertex
3 units to the right and 2 units up.
X( -5, 3 ) Y (1, 2) Z ( 2, -3)
X1 (-2,5), Y1 ( 4,4) Z(5,-1)
4 units to the right and 2 down.
X( -5, 3 ) Y (1, 2) Z ( 2, -3)
X1 ( -1. 1) Y1(5,0) Z(6,-5)
Parallelogram
Opposite sides are parallel and opposite angles are congruent
ALL possible transformations that carry a Triangle onto itself
reflection over the line of symmetry, rotation about 360 around the CENTER, rotation about 360 around its VERTICES
ALL possible transformations that carry a Square onto itself
Rotation 90, 180 , 270 and 360 clockwise about ITS CENTER, Rotation 360 clockwise about ITS VERTICES, Reflection over the line connecting the midpoints of opposite sides, Reflection over the line connecting 2 opposite vertices, Reflection along the DIAGONALS
SSS
SAS
0.15
weak positive correlation
-0.93
strong positive correlation
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