Answer:
y= -x + 4
Step-by-step explanation:
Answer:
- Graph B has one real root.
- Graph A has a negative discriminant
- Graph C has an equation with the coefficients a=1, b=4, c=-2.
Step-by-step explanation:
The number of real roots is the number of places where the graph intersects the x-axis. When the discriminant is negative, there are none. Graph A does not cross the x-axis, so has a negative discriminant.
Graph B intersects the x-axis at one point, so it has one real root.
Graph C has two real roots, consistent with the positive discriminant associated with the given coefficients:
_____
For quadratic ...
the discriminant is ...
and the roots are ...
Then the roots are only real when the discriminant is non-negative. The square root function will not give real values for a negative argument.
Answer:
5 steps back or fourth, 5 steps fourth or back
Find the greatest common factor which is 9
9(9x^2-3x-2) and then factor the equation in the parenthesis
so the factored equation will be 9(3x+1)(3x-2)
T-40, t is ur original value and you take away 40 because math