Slope
y-y over x-x
What is slope intercept form?
y=mx+b
Describe what an infinite solution is.
all numbers will work for x; they will have the same coefficient and constant (same slope and y-intercept).
What is standard form?
TRIPLE!
ax+by=c
What are the 4 types of transformations?
Dilation
Translation
Reflection
Rotation
Define Slope
CRC; unit rate; rise over run.. etc.
Mr. Knotts currently has $150 dollars and is spending $3 per day.
Write an equation to represent this situation
y=-3x+150
5x+34=-2(1-7x)
x=4
2x+5y=10
y=-2/5x+2
What does (x+4,y-2) mean for a figure?
Go down 2 and right 4
(2,2) and (-4,5)
-1/2
Mr.Wolfe has no money in his checking account but is earning $5 each day.
y=5x
5+4x-7=4x-2-x
x=0
4x-2y=7
y=2x-7/2
What happens to my ordered pairs when I rotate 180 degrees?
They become their opposite.
(0,-3) and (7,11)
2
Mrs. Johnson has read 135 pages so far in Catching Fire. She decides to read 5 pages each day. Write an equation to represent
y=5x+135
18x-5=3(6x-2)
no solution
6x-y=4
y=6x-4
Dilate the following. SF= 3
A (-8,4)
B (-3,7)
A' (-24,12)
B'(-9,21)
(-9,8) (-9,3)
undefined.
Mr. Karczewski currently has 130 Instagram followers but is losing them at a rate of 3 followers each day. Mrs. Karczewski just started her Instagram account and has zero followers but is gaining 5 followers each day. After how many days will they have the same amount of followers? Write an equation to represent this situation.
-3x+130=5x
-8x+10=2(5-4x)
infinite solutions
4x+3y=8
y=-4/3x+8/3
Translate A (-4,5) up 8 and left 9
A' (-13,13)