Answer:
A) (3,14)
Step-by-step explanation:
6x - 4 =7x - 7
subtract 6x from both sides
-4 = x -7
add 7 to both sides
3= x
now that we know the value of x, plug it into either equation to get y=14
(-8,11)(4,7/2)
slope(m) = (7/2 - 11) / (4 - (-8) = (7/2 - 22/2) / (4 + 8) = (-15/2) / 12 = -15/2 * 1/12 = -15/24 = -5/8
y = mx + b
slope(m) = -5/8
use either of ur points...(-8,11)...x = -8 and y = 11
now we sub and find b, the y int
11 = -5/8(-8) + b
11 = 5 + b
11 - 5 = b
6 = b
so ur equation is : y = -5/8x + 6
Answer:
B. 4.62 x 10^5 is scientific notation of 462000
