A true function can only have one specific y-value for each x-value.
Therefore, something like this would NOT be a function:
(2,3), (2,0) there are two y-values for the same x-value (not a function)
However, this example WOULD be a function:
(2,3), (4,4), (5,2), (3,2)
it is still a function even if there are two of the same y-values for two different x-values. There just can't be two same x-values with different y-values.
Hope that helps!
Answer:
x=7 Hope this helps :)
Step-by-step explanation:
Let's solve your equation step-by-step.
2x+8+3x+6=7x
Step 1: Simplify both sides of the equation.
2x+8+3x+6=7x
(2x+3x)+(8+6)=7x(Combine Like Terms)
5x+14=7x
5x+14=7x
Step 2: Subtract 7x from both sides.
5x+14−7x=7x−7x
−2x+14=0
Step 3: Subtract 14 from both sides.
−2x+14−14=0−14
−2x=−14
Step 4: Divide both sides by -2.
−2x
−2
=
−14
−2
x=7
Hello, please consider the following.
a) You need to replace x by -1.
b) You need to replace x by 2t and simplify.
c) You need to replace x by t-2 and develop, and simplify.
Thank you.
28 multiply by 0.75 =21
answer is 21
0.75 is 75%
Answer:
x = 15/2 or 7.5
Step-by-step explanation:
-4 (x - 1) + 6x = 2(17 - x)
First, distribute the -4 and 2, and remember that multiplying two negatives make a positive.
-4x + 4 + 6x = 34 - 2x
Combine like terms
2x + 4 = 34 - 2x
Subtract 4 from both sides
2x = 30 - 2x
Add 2x to both sides
4x = 30
Finally, divide both sides by 4
x = 15/2 or 7.5