Step-by-step explanation:
Any complex number is of the form:
where a is real part and B is imaginary part.
Therefore, in given complex number:
7 is real part.
is imaginary part.
Hence, first two options are correct.
Last two options are incorrect because of the following reasons:
is coefficient of
& not
Given number is a difference of a real number and imaginary number & not a sum of a real number and imaginary number.
Answer:
<h2>
y = 2x + 6</h2>
Step-by-step explanation:

y = 2x + b passes through point (-3, 0), so:
0 = 2(-3) + b
0 = -6 + b
b = 6
Therefore the equation: <u>y = 2x + 6</u>
Answer:
Equation to represent the situation = 
Step-by-step explanation:
Given:
Initial investment = Y
Growth rate (r) = 5% = 5 / 100 = 0.05
Number of year (n) = X year
Amount after X year = $800
Find:
Equation to represent the situation:
Computation:

Equation to represent the situation = 