Step-by-step explanation:
f(–7) if f(x) = 3x + 6
3(-7) +6
-21+6
x= - 15
<span>Suppose an investment of $8200 doubles in value every 7 years. how much is the investment worth after 28 years
131,200</span>
Answer: x = (-2,0) y = (0,-3) slope is -3/2
Step-by-step explanation: graph the line by using the slope and y intercept
You didn't give us a picture but I'll help you as best as I can.
First, convert the equation into the form y=mx+b:
15x-5y=30
-5y=-15x+30
Divide both sides by -5.
y=-3x-6
Below is a graph of that equation: