`x/4=3/2`
x=6
`-2(3x-5)=70`
x=-6
Find the slope
(2,-4) and (3, -2)
m=2
What is the domain and range?
Domain is the set of x values and range is the set of y values
2 pizzas feed 5 people. How many pizzas feed 15 people?
6 pizzas
`2/5=5/x`
`x=25/2`
`-4(3-2x)=3(5x+3)`
x=-3
Find the slope
(-3,4) and (2,-5)
`-9/5`
What shape does the parent function x2 look like?
U shape
The ratio of dogs to cats in a pet store is 5:3. If there are 25 dogs, how many cats are there?
15 cats
`-3/x=2/10`
x=-15
`-5(4x-3)+3=6(3-3x)-2x`
infinite solutions
Write the equation in slope intercept form
(3, -2) , slope=2/3
`y=2/3x-4`
Does a circle pass the vertical line test?
no
You get paid $55 for working for 4 hours. How much do you get paid per hour?
$13.75
`(x+1)/2=3/4`
`x=1/2`
`-5(7x+10)+20=3(-6x-10)`
x=0
Write the equation of the line perpendicular to y=2x-4 through the point (6, -2)
`y=-1/2x+1`
Evaluate f(2)
`f(x)=-2abs(2x-6)`
f(2)=-4
3.21 gallons
`(2x+2)/5=(x-3)/5`
x=-5
`7(4-2x)+4x=3(-3x+1)-x`
no solutions
Write the equation of the line through
(-3, 5) and (1, 3)
`y=-1/2x+7/2`
Evaluate at f(-1)
`f(x)=-x^2+2x-3`
f(-1)=-6
It takes one and a half hours to bike 25 miles. How many miles can you bike in 50 minutes?
13.89 miles