Suppose that y varies inversely with x. Given x=-3 when y=-105. Find y when x is 15

The value of y is 21.

Step-by-step explanation:

The formula of inversely proportional is y = k/x where k is a constant. So in order to find y, you first have to find the value of k by substituing x and y values into the formula :

Let y = -105,

Let x = -3,

We have already found k value. Next you have to find the value of y :

Let x = 15,

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

25.2

step-by-step explanation:

2+4x6-8/10= 25.2