Multiply the first equation by -1 to use elimination method.
x-y=-7
6x+y=14
7x=7
x=1
Plug this x value in.
-1+y=7
y=8
Final answer: (1,8)
Answer:cubic polynomial
Step-by-step explanation:
When the biggest degree of your polynomial is 3,your polynomials name is cubic polynomial
Answer:
8
Step-by-step explanation:
Substitute the given values into the expression
xy²
=
× 4 × (- 2)²
= 2 × 4
= 8
Answer:
2.8 i think
Step-by-step explanation:
Answer:
The domain is all real numbers.
The function is always decreasing
Step-by-step explanation:
Assuming the given function is

for

Then f(x) is an exponential decay function.
This means that, the domain will be all real numbers.
The range will be y<0
The y-intercept is (0,-1)
There is no x-intercept.
The graph is a decreasing function.