Proportions
What is the method to find a proportion?
butterfly method
cross products
what is the formula for finding slope?
y_2-y_1
_________
x_2-x_1
What is the solution to this equation?
2x+3=7
what is slope intercept formula?
y=mx+b
write an inequality to represent his situation.
i will spend at least $500 on my next vacation
x<=500
Solve for x
x=6
________
28=10
x=16.8
y=-1/2x+5
-1/2
if x=40, what is x+6?
46
what does x equal when i am finding my y-intercept?
x=0
what is the slope and y-intercept of the problem?
y=4x+9
slope=4
y-intercept=9
Solve for x
(4x+2)=76
__________
10 =34
x=5.08
what is my slope for this equation?
y=-x+8
-1
what is the solution to this equation?
4x+5=165
x=40
how many outputs can 1 input have?
only one
write an inequality to represent his situation.
i spend no more than $1000 before my next paycheck
x>1000
There are 500 students at Victory College Prep. If 80 of those students take Algebra 1 with the best teacher ever, what is the percentage of students who take algebra?
x=16
what is my slope for this equation?
-2x+y=6
if 3x+2=8, what is the value of 9x+6?
24
What is the slope and y-intercept of this equation?
y>7x+8
slope=7
y-intercept=8
Solve for "y"
4x+12y>36
y>1/3x+3
A 5 foot tall climber casts a 25 foot long shadow at the same time that a tree casts a 100 feet long shadow.
How tall is the tree?
x=20
what is my slope for this equation?
6x-2y=12
slope=3
A principal used a total of 25 total flags that were either blue or yellow for field day. The principal used 20 blue flags. How many yellow flags were used?
5 yellow flags
What is the slope and y-intercept of this problem?
-3x+y<-3
slope=3
y-intercept=-3
Solve the inequality
-40y>20+140
y>-4