Answer: All Real Numbers
x2−8x+17>0
x2−8x+17=0
For this equation: a=1, b=-8, c=17
1x2+−8x+17=0
x=
−b±√b2−4ac
2a
(Use quadratic formula with a=1, b=-8, c=17)
x=
−(−8)±√(−8)2−4(1)(17)
2(1)
x=
8±√−4
2
All real numbers
In equations like this, you could use PEMDAS- Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction in that order. Since there are no parentheses or exponents you can go to multiplication. Since x=9 and y=6, you multiply x(9) and y(6) to get 54. Now you can add since there is no division or subtraction involved. 54+ u(2) = 56. So u + xy = B. 56
Answer:
Step-by-step explanation: There are many ways to think about slope. The slope of a line is the steepness of the line. It can be also right Slope is the rise over the run, the change in 'y' over the change in 'x', or the gradient of a line
Answer:
-2
Step-by-step explanation:
17.8 + f =
17.8 + (-19.8)
= -2
You can spot a linear equation when the highest degree for a variable in the equation is 1.
E.g.
y = 2x +4
The highest power of x in this equation is 1, since variable x of the 2x is x is to the power of 1, and 4 is a constant where you can imagine it to have an x but to the power of 0.
E.g.
y=x^2 + 2x +4
In this case, this would be an quadratic equation because the highest power that the variable x has in this equation is 2 (x to the power of 2).
