In the form of algebra substitution is the method used in simultaneous equations.
E.g y=2x+5 and y=5x-1
Solve for x and y
Since we know two examples of what y is, we can substitute one y in replacement of the other to get.
2x+5=5x-1 then we solve for x to get:
x = 2 sub this back in to get y = 2(2) +5
y = 9
Answer:'3^14
Step-by-step explanation:
This geometric sequence has common ratio 3 and first term 1.
Thus, the general formula for the nth term is a(n) = 1*3(n - 1).
The 15th term is thus a(15) = 1*3^(n -1) = 3^14.
Answer:
Relationship is :linear
Rate of change : 3
Y-intercept : (0,1)
Equation that models the data : y=3x+1
Step-by-step explanation:

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