Answer:
Step-by-step explanation:
Explicit Geometric Formula:
a₁ is 1st term
<em>r</em> is common ratio
<em>n</em> is term number
Step 1: Find common ratio <em>r</em>
r = 10/2 = 5
Step 2: Plug variables into formula
If you are solving for a: it equals 3
distribute: 5a + 5=2a +14
get rid of extra number on one side: 5a=2a +9 (subtract 5 from both sides)
get rid of the other variable: 3a=9 (subtract 2a from both sides)
divide to isolate a: 3a/3=9/3 (divide by three on both sides)
answer= a=3
Your y-intercept would be (0,-15) and your x-intercept would be (-60,0)
The number of pencils is directly proportional to the cost. ... Two values x and y are inversely proportional to each other when their product xy is a constant (always remains the same). This means that whenx increases y will decrease, and vice versa, by an amount such that xyremains the same.