Answer:
A function can be reflected about an axis by multiplying by negative one. To reflect about the y-axis, multiply every x by -1 to get -x. To reflect about the x-axis, multiply f(x) by -1 to get -f(x).
Step-by-step explanation:
Discounted by 25% means he paid 75% of the original price:
80 x 0.75 = $60
Now multiply the sale price by 1 + tax rate:
60 x 1.05 = 63
He paid $63 total.
Create a proportion: 4/7=x/392
Cross multiply: 7x=1568
Divide: 1568/7=224
x=224
Answer:
49.9
Step-by-step explanation:
if b is 15 then you multiply 2 and 15 (b) to get 30. then you add 19.9 and 30 to get 49.9
M represents the month because the value is decreasing every month.
Hope this helps :)
