Functions
Find the range of the relation {(-15,2),(3,9),(3,5)}. Then determine whether the relation is a function.
{2, 5, 9} Not a function.
Write an equation in slope-intercept form for the line that has a slope of 2 and passes through (-3,4).
y=2x+10
The graph of the linear inequality y>2x+4 is the region of the graph shaded above or below the line?
above
Find the following
5[-4 0] - 3[1 2]
[-23 -6]
Identify the y-intercept for f(x)=2x2+3x-4
(0,-4)
Find f(-1) if f(x)=2x+9-x2
f(-1)=6
Name the sets of numbers to which -100 belongs
Integers, rationals, and reals.
The first equation of the system is multiplied by 3. By what number would you multiply the second equation by to to eliminate x? 4x+5y=2 3x+2y=5
|2 3|
|4 0|
Determine the determinant.
-12
Find the axis of symmetry for f(x)=2x2+3x-4
-3/4
Find the x-intercept of the graph of 3x+2y=6
(2,0)
Evaluate |2x-3y| if x=-2 and y=5
19
Write in standard form the line that has a slope of 2 and a y intercept of -4.
2x-y=4
|2 -3 1|
|2 0 -1|
|1 4 5|
Evaluate using diagonals
49
Solve the equations. If exact roots cannot be found state the consecutive integers between which the roots are located. x2+2x-8=0
2 and -4
Find the slope of the line that passes through (2,4) and (3,8)
m=4
Solve the inequality 2|x-4|>12
x<-2 or x>10
Write in standard form the line that has a slope of -3 and a y intercept of 2.
3x+y=2
|1 3 2|
|-3 -1 -3|
|2 3 1|
Evaluate using diagonals
-15
Solve the equations. If exact roots cannot be found state the consecutive integers between which the roots are located. x2-4x-5=0
5 and -1
What is the slope of a line that is perpendicular to y=2x+1?
m=-1/2
Evaluate (x-y)2+3y3 if x=3 and y=2
25
In a piecewise function, how would you represent a line segment that x is greater than -1 but less 2
-1<x<2
Find the following
[-4 2] - [3 2 3]
Not possible
Solve the equations. If exact roots cannot be found state the consecutive integers between which the roots are located. x2 = 4x-2
Between 0 and 1; between 3 and 4