Answer:
I pretty sure the answer is <u>A</u><u>S</u><u>A</u>, I hope it's right!
Answer:
y= 5 x= 2
Step-by-step explanation:
-3x+5y=2x+3y
5y=5x+3y
2y=5x
Answer:
f-¹(x) = (4- x)/ 3
Step-by-step explanation:
inverse of a function is nothing but the value of x in terms of f(x)
like
if we write f(x) as y we'd get
y = - 3x + 5
so, ill express x in terms of y:-
y= -3x + 4
- adding 3x on both sides of the equation
y + 3x = -3x + 3x + 4
- subtracting y on both sides
y - y + 3x = 4 - y
3x = 4 - y
- dividing the whole equation by 3
x = (4 - y)/ 3
soo, the inverse of the function is x = (4- y)/ 3
mostly we write the inverse in terms of x, hey! don't get confused, when i say this, I simply mean that we're gonna replace y with x and x with f-¹(x).
therefore,
f-¹(x) = (4- x)/ 3
Answer:
x = 8
Step-by-step explanation:
x + y + 10 = 20
if y = 2,
=> x + 2 + 10 = 20
=> x + 12 = 20
=> x = 20 - 12
=> x = 8
1) in order for two lines to be perpendicular, their gradients must multiply together to get -1
-1/3*b=-1
b=3
5=3(3)+b
5=9+b
b=-4
equation of the line is y=3x-4
2) parallel lines have the same gradient
4=2(-3)+b
4=-6+b
b=10
equation of the line is y=2x-10
