Answer:
y = -2x +3
Step-by-step explanation:
Slope intercept form is y= mx+b where m is the slope and b is the y intercept
We need to solve the equation for y
8x+4y =12
Subtract 8x from each side
8x-8x+4y =-8x+12
4y = -8x+12
Divide each side by 4
4y/4 = -8x/4 +12/4
y = -2x +3
This is slope intercept form
Center point is at: (-3+ X) (2+Y)
= change in range and domain
radius = (X-x)/2 or (Y-y)/2
Therefore: center is (1,-2) radius= 4
Equation: (x-1)^2+(y+2)^2=16
Answer:
c
Step-by-step explanation:
i hope it is right plz give me brainllest plz
For the two lines to be equal, they have to have the same slope.
So put the other one in slope intercept form because the first one is already in the equation of y=mx+b, where m is the slope.
5y+2x=4
5y=-2x+4
y=-2/5x+4/5
The second line has a slope of -2/5
The first line has a slope of 2.
They are not parallel, because they don't have the same slope. One has a slope of -2/5 and the other one has a slope of 2.
Hope this helps :
Let x=the number of $1 bills she has, and let y=the number of $5 she has. From the information given, we can say:
x+5y=40
x+y=12
When you subtract the first equation from the second equation, you get:
x+5y-x-y=40-12
4y=28
y=7
Therefore, Hermione has 7 $5 bills in her purse.