The domain is the set of all values a function will accept as inputs.
3 is the first one.
-1 is the 2nd
and 7 is the 3rd
You draw a circle from the tip of the triangle. Then you draw equal-sized circles from the points where the first circle intersects the triangle. Connect the tip of the triangle and the point where the equal-sized circles intersect each other.
1/4=2/8
7/8-2/8=5/8
so 5/8 foot of the board is left
Answer:
y = -10
Step-by-step explanation:
To solve this, you must find the value of x first. To do this you must move the first equation so that x is by itself.
-2x + 3 = 7
Subtract 3 from both sides:
-2x = 4
Divide both sides by -2:
x = -2
Now plug in -2 for x into the second equation, like so:
3x + 1 = 5 + y
3(-2) + 1 = 5 + y
-6 + 1 = 5 + y
Add like terms:
-5 = 5 + y
Subtract 5 from both sides:
-10 = y
