The slope-intercept form of a line is:
y=mx+b
m=slope=(y2-y1)/(x2-x1)
b=y-intercept (the value of y when x=zero)
Answer:
undefined
Step-by-step explanation:
log6(-36) = undefined
In real numbers we cannot take the log of negative numbers
Answer:
36 years old (jim)
Step-by-step explanation:
looks like a good ol' word problem!
first, if you don't know what to do, always assign variables
Jim's age: x+9
June's age: x
Alex's age: x-8
we know the sum of their ages which is 82
so, x+9+x+x-8=82
simplify
3x+1=82
3x=81
x=27, but we're not done yet
Now we know x
jim: 36
june: 27
Alex: 21
so the oldest is jim at 36
Answer:
30 pounds
Step-by-step explanation:
create a proportion and cross-multiply to solve
let x = $45 worth of tomatoes, in pounds
21 / 31.5 = x / 45
31.5x = 945
x = 30