Answer:
B. 2, -0.5
Step-by-step explanation:
Given the equation
Rewrite it as
Graph the graph of the quadratic function 
The grapg of this function is a parabola going downwards.
This parabola intersects the x-axis at points x = -0.5 and x = 2, so the solutions of the equation are x = -0.5 and x = 2
Let us assume that the area of the garden is 120 sq.ft
It is given that base=16 ft
Area of Triangle = 1/2 * b * h
120 = 1/2 * 16 * h
h = 120 * 2/16
h = 120 * 1/8
h = 15 ft
Therefore, the height of the triangular garden is 15 ft
The x intercept represents the maximum number of books he can buy
Answer:
3x
Step-by-step explanation:
Step-by-step explanation:
f(x) = x² + x + 3/4
in general, such a quadratic function is defined as
f(x) = a×x² + b×x + c
the solution for finding the values of x where a quadratic function value is 0 (there are as many solutions as the highest exponent of x, so 2 here in our case)
x = (-b ± sqrt(b² - 4ac))/(2a)
in our case
a = 1
b = 1
c = 3/4
x = (-1 ± sqrt(1² - 4×1×3/4))/(2×1) =
= (-1 ± sqrt(1 - 3))/2 = (-1 ± sqrt(-2))/2 =
= (-1 ± sqrt(2)i)/2
x1 = (-1 + sqrt(2)i) / 2
x2 = (-1 - sqrt(2)i) / 2
remember, i = sqrt(-1)
f(x) has no 0 results for x = real numbers.
for the solution we need to use imaginary numbers.
