Answer:
Yes, because the linear function x - y = 5 is a function
Step-by-step explanation:
x - y = 5 can look like y = x - 5 with slope 1 and y-intercept -5
so this is a function which makes set K a function.
Answer:
ok ill explain if want after test
Step-by-step explanation:
angle 2 and 4 are 50
angle 1 and 3 are 130
angle 5 and 7 are 50
angle 8 and 5 are 130
Answer:
1/3x +2/3 = y
Step-by-step explanation:
y= 3x-2
To find the inverse, exchange x and y
x = 3y-2
And solve for y
x+2 = 3y-2+2
x+2 = 3y
Divide by 3
1/3(x+2) = 1/3(3y)
1/3x +2/3 = y
Working:
7y + 42 = -14x
7y = -14x - 42
y = ((-14x - 42) ÷ 7)
Expand and Simplify:
y = -2x - 6
Factorise:
y = -2(x +3)
x = -3
Substitute x=-3 into equation.
7y + 42 = -14(-3)
7y + 42 = 42
7y = 0
Divide 7, on both sides, to get rid of the coefficient (7), thus, making y the subject.
y = 0 [anything divide or times to zero, will always remain zero]
Following model: (x,y)
Answer: (-3,0)
Hope this helps. Chur :)
You would do 4×4 and get 16(20-x)-8(x+3)=8 so then × 16 by 20 and 16 by x and get 320-16x and then × -8 by x and -8 by 3 and get -8x-24 so then you would have 320-16x--8x-24=8 then - -8x from -8x and -16x and end up with 320-8x-24=8 then subtract 320-24 and get 296 and then have 296-8x=8 then subtract 296 on both sides and you will get -8x=288 then divide -8 on both sides and x= 37
