Answer: IF you have two equations with the 2 variables, x and y, you can substitute one y-value with the other, then solve.
Step-by-step explanation: For example:
y = 2x + 4
3x+y = 9
We can substitute the value of y from the first equation, 2x + 4, into the second equation. So, the second equaton becomes:
3x + 2x + 4 = 9
Now solve for x:
5x + 4 = 9
5x = 5
x = 1
This value of x then can be used to find y, by substituting in the value "1" for x in the first equation:
y = 2x + 4 = 2(1) + 4 = 2 + 4 = 6
So, the solution to this linear system is (1, 6)
Answer:
Yes your welcome
Step-by-step explanation:
It is because you are going backwards in the negative form
Answer:
The average rate of change is 1/4
Step-by-step explanation:
As you can see in the chart, for every four units rightward, the line goes up one unit. That means f(x) has an average rate of change of 1/4.
Answer:
x(x+5)[(x+5)² +3(x-1)]
Step-by-step explanation:
(x²+5x)(x²+13x+22)
Expand
(x²+5x) (x²+13x+22) by multiplying each term in the first expression by each term in the second expression.
x²x²+x²(13x)+x²⋅22+5x⋅x²+5x(13x)+5x⋅22
Simplify terms.
x⁴+18x³+87x²+110x
rotation, then translation, then reflection