Note that since (0, -6) is the y-intercept, we can write the slope-intercept equation of the line as y = mx - 6. The other given point is (-2, 0) (which happens to be the x-intercept also). Starting with y = mx - 6, replace y with 0 and x with -2:

0 = m(-2) - 6. We now solve this for the slope, m: 0 = -2m - 6 becomes

2m = -6, or m = -3.

With m = -3 and b = -6, the equation of the line is y = -3x - 6

4 0

2 years ago

A bank is offering you an introductory credit card promotion. Your interest for the first year is 8%. But, at the beginning

Art [367]

Answer:

c) $22.50

Explanation:

1. Calculate the monthly interest owed during year 1

Interest for first year: 8%

The monthly rate is the yearly rate divided by 12: 8% / 12 = 0.08/12

The monthly interest owed is the monthly rate times the balance: (0.08/12)×$1,800 = $12.00

2. Calculate the monthly interest owed during year 2

Interest for second year: 23%

The montly rate is the yearly rate divided by 12: 23% / 12 = 0.23/12

The monthly interest owed is the monthly rate times the balance: (0.23/12)×$1,800 = $34.50

3. Calculate the difference

Difference in the monthly interest owed during year 1 and year 2 = $34.50 - $12.00 = $22.50

Hence, the answer is the option c) $22.50

7 0

2 years ago