3tony orives 18 miles to pick up his friend at his house.
then he drives at a constant speed of 40 miles per hour
to a state park to go hiking. let y represent the number
of miles that tony drives after x hours. which of the
following statements are true? select all that apply.
a the relationship can be represented by the
equation y = 40€ + 18
8 tony travels for 15 hours, he will have driven a
total of 60 miles
the initial value is 18 miles.
d the rate of change is negative.

hows it hangin lol

step-by-step explanation:

160

step-by-step explanation:

idk

i hope i

x^2 + 81

we can factor this using difference of square binomials.

rewrite the equation:

x^2 - (-81)

factor:

(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)

(x^2 - (-81) = (x + √-81)(x - √-81)

we can remove the - from under the radical by multiplying it by i.

(x^2 - (-81) = (x + i√81)(x - i√81)

(x^2 - (-81) = (x + 9i)(x - 9i)

we can check our answer by using foil:

x^2 - 9ix + 9ix - 81i^2

x^2 - 81^2

i^2 = -1

x^2 + 81