To solve systems of equations you have 3 ways: Substitution, Elimination, and Graphing.
For graphing you could use desmos or a graphing calculator.
For substitution, you solve for x or y on one of your equations and, for example, let's say you solve for x, you take whatever x equals to (EX. x=y+2) and plug it into your other equation (EX. 3(y+2)-y=3)
For elimination, get x or y to be the same number but opposites (one positive one negative) then you "add" the two systems together and then you should end up with #x=# or #y=#, (EX. 2x=6) last step is to divide.
Hope this helps
Domain – All of the values that go into a relation or a function are called the domain. Range – All of the entities (output) which emerge from a relation or a function are called the range. All input values that are used (independent values) forms the Domain set.
Answer:
Step-by-step explanation:
Step-by-step explanation:
I'll do line A for you and you can use the formulas to solve lines B and C yourself, since its good for you to practice doing these questions yourself
a)
The gradient, m, is calculated using m = (y2-y1)/(x2-x1) where x1,x2,y1 and y2 can be any ordered pairs on the line. I'm going to use (4,0) and (7,3) as the 2 points.
m = (3-0)/(7-4) = 3/3 = 1
b)
The y-intercept is where the line intersects with the x-axis. In this case (0,-4)
c)
The equation of a linear line is y=mx+b (or c depending on which country you are from)
y = 1x-4
y=x-4
Now try the other 2 lines yourself!
If this answer has helped you, considered making this the brainliest answer!
-8(3)(12)
2(12)(-4)
-8(36)
2(-48)
-288
-96
3
