First find slope intercept for our equation
-6x+3y=18.9
3y=6x+18.9
y=2x+6.3
Since b is y intercept, y intercept is (0,6.3)
Now in x intercept y is equal to 0.
So substitute it for our equation.
0=2x+6.3
-2x=6.3
x=-3.15
So x intercept is (-3.15, 0)
Answer:
a < -
Step-by-step explanation:
Using the discriminant Δ = b² - 4ac
For a polynomial to have 2 real roots
b² - 4ac > 0
Given
p(x) = (a + 1)x² + 2ax + (a + 2)
with a = a + 1, b = 2a and c = a + 2, then
(2a)² - 4(a + 1)(a + 2) > 0 ← expand and simplify left side
4a² - 4(a² + 3a + 2) > 0
4a² - 4a² - 12a - 8 > 0
- 12a - 8 > 0 ( add 8 to both sides )
- 12a > 8
Divide both sides by - 12, reversing the symbol as a result of dividing by a negative quantity
a < , that is
a < -
It passes through the point (1,0) and there are no negative values . Look like its a logarithmic function
It is a trinomial because it has three terms and it is not a perfect square nor a difference of squares.
Answer:
0.25
Step-by-step explanation: