Unit 1,2
Find the x and y intercepts of: 5x-9y=45
x int: (9,0)
y int: (0, -5)
Solve the system:
4x+3y=31
y=2x+7
(1,9)
Write an example of a Quadratic Trionomial, a Linear binomial, and a quintic polynomial
answers may vary
Find the midpoint of (2,-3) and (-6,9)
(-2,3)
Define excluded value and roots. When and how do you find them.
Excluded value: Do before you simplify, what makes the denom=0 and the function undefined
root: do after you simplify, what makes num=0. What makes the funciton equal to 0
Is this a function? Why or why not:
(3,5) (-2,6) (4, 6) (3,2) (9,0)
Solve the system
3/2x-y=3
3x-2y=12
No solutions
Distribute: (x2-4x+5)(5x2+3x-4)
5x4-17x3+9x2+31x-20
If a right triangle has the legs of 30 and 40, what is the hypotenuse
50
Using inverse functions if x=8 when y=10, what does x= when y=-4
-20
Graph | 1 + 2m | < 5
AND
| 12k -82 | < -123
ask ms Repkin
(a2b3)4/(a5b6)7
1/a27b30
solve for n: n(n-4)+n(n+8)=n(n-13)+n(n+1) +16
n=1
Add: 3root5+7root125-2root45
32root5
Draw a quick sketch of y=9(x+2)2-8
Describe the transformations
Stretched by a factor of 9, left 2, up 9
Write an equation of a line with the x intercept of 6 and a y intercept of -13
y=13/6x-13
256=22x+3
5/2
Solve by completing the square. Must show work x2+8x+9=0
root7 - 4, -root7-4
Solve for p:
p-3=root(5p-15)
8,3
Sketch an exponential graph, then sketch a square root graph. Which one has a domain of negative infinity to positive infinity
exponential
Write an equation of the line throuth (-3, 15) that is perpendicular to 5x-14y=23
y=-14/5x+33/5
challenge: solve the system. There are 4 answers!
x2+y2=4
-x+y2=4
(0,2), (0, -2), (root3, -1) (-root3, -1)
Factor 10y2-31y+15
(5y-3)(2y-5)
Simplify:
(3+root2)/(2+root6)
As a group, sing the quadratic formula song. Then spin around 3 times and say 10 digits of pi
:)