Math Flashcards
What is a Cartesian Plane
the plane formed when a vertical and horizontal number line cross
What are coordinates
the value of an ordered pair
what is a y-axis
the vertical number line on a coordinate grid
what is a x-axis
the horizontal number line on a coordinate grid
what is the origin
the point where the x-axis and the y-axis meet
what are quadrants
the four regions on a coordinate grid
what is transformation
moving a geometric figure
three ways to move a geometric figure
translation, reflection, rotation
what is a translation
a slide along a straight line.
what is a reflection
a mirror image.
what is rotation
a turn about a fixed point.
what is an estimation
is finding an approximate answer.
what is an overestimate
an estimate that is larger than the actual answer
what is an underestimate
an estimate that is smaller than the actual answer
when adding/subtracting decimal numbers
- Always line up the decimal
- Use your knowledge about place value
meaning of bedmas
bracket, exponents, division, multiplication,
addition, subtraction
what are parallel lines
lines that never intersect or cross
what are perpendicular lines
lines that intersect at 90 degrees
what does bisect mean
to cut into two
what are perpendicular bisectors
a line that divides a line segment in half
what are angle bisectors
divides an angle into two equal parts
——— is a four sides figure with opposite sides parallel and equal in length
parallelogram
area of a rectangle
l x w
area of a parallelogram
b x h
area of a triangle
b x h /2
