Triangle abc underwent a sequence of transformations to give triangle a'b'c' which transformations could not have taken place?
a
a reflection across the line y = x followed by a reflection across the line ya
b.
a reflection across the x-axis followed by a reflection across the yaxis

if x decreases by 4 then y increases by 10

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval