Distance
What is the distance formula?
d = the square root of (x2 - x1) + (y2-y1)
What is the midpoint formula?
What is the slope formula?
Change in x over change in y
List the domain of the following relation {(a,1), (b,2), (c,3), (e,2)}
{a,b,c,e}
What do we call the four parts defined by the lines on a coordinate plane?
quadrants
Find the distance (-3, -3) and (5, -9)
10
Find the midpoint (0,7) and (3,0)
3/2, 7/2
Find the slope of a line passing through (-4, -3) and (2, -5)
-1/3
List the range of the following relation {(2,2), (1,1), (1,2), (1,3)}
{1,2,3}
What is the range?
the set of all the second members in a relation
Find the distance (-2, 0) and (0, -2)
2 square root of 2
Find the midpoint of (5, -4) (-1, 5)
(2, 1/2)
Find the slope of a line passing through (3/2, 1) and (1, -4/3)
14/3
Using the set {1,2,3...10} Find {x| 2<x<8}
{3,4,5,6,7}
What is the domain?
the set of all the first members in the relation
Find the distance (-2, 3) and (-5, -2)
square root of 34
(8,8) (-2,-2)
(3,3)
Find the slope of a line passing through the points (-2, 7) and (1,7)
0
Find the cartesian product where Q= {2,3,4,5}
{ (2,2) (2,3) (2,4) (2,5) (3,2) (3,3) (3,4) (3,5) (4,2) (4,3) (4,4) (4,5) (5,2) (5,3) (5,4) (5,5) }
What is the vertical line test?
We can draw a straight vertical line over a graph to determine if it is a function. If it can intersect more than once, it is not a function.
Find the perimeter of a triangle with the vertices at (-1,-2), (2,-2) and (2, 2)
12
Find the midpoint of (3, 26/5) and (9, -14/5)
(6, 6/5)
( 3, 26/5) and (9, -14/5)
-4/3
In the cartesian product of Q= {2,3,4,5} find {(x,y)| y> x+1}
(2,5) (2,4) (3,5)
What is a function?
Relations in which each member of the domain is matched with exactly one member of the range. Or no x- value has more than one y-value.