81 more than x
more than means add
81 more than x
x+81 or 81+x
To find the slope of the expression:
We need to remember that this is the Slope-intercept Form of the line equation:
Where
m = slope
b is the y-intercept.
Therefore, the slope of the line equation above is m = 3.
Answer: There are no real number roots (the two roots are complex or imaginary)
The discriminant D = b^2 - 4ac tells us the nature of the roots for any quadratic in the form ax^2+bx+c = 0
There are three cases
- If D < 0, then there are no real number roots and the roots are complex numbers.
- If D = 0, then we have one real number root. The root is repeated twice so it's considered a double root. This root is rational if a,b,c are rational.
- If D > 0, then we get two different real number roots. Each root is rational if D is a perfect square and a,b,c are rational.
3 10 17 24 31 38 because 3 plus 7 equals 10
