Answer:
y = 3x + 10
Step-by-step explanation:
first use slope formula:
=
= 3
then plug that and the y-intercept into y = mx + b
(c+8)(c-8)
3(2y+5)(2y-5)
There are no like terms so it's still ab^2-b
Answer:
x =4 ±sqrt(5)
Step-by-step explanation:
x2 - 8x + 16 = 5
Complete the square
(x-4)^2 = 5
Take the square root of each side
sqrt((x-4)^2) = ±sqrt(5)
x-4 = ±sqrt(5)
Add 4 to each side
x-4+4 =4 ±sqrt(5)
x =4 ±sqrt(5)
Joey walked 0.5 miles he usually walked 0.7 miles the difference is 0.2 miles