Step-by-step explanation:
Correction:
1⟩
Given equation is x²-3x = 4
⇛ x²-3x -4 = 0
⇛ x²+x-4x-4 = 0
⇛ x(x+1)-4(x+1) = 0
⇛ (x+1)(x-4) = 0
⇛ x+1 = 0 or x-4 = 0
⇛ x = -1 or x = 4
2.⟩
Given equation is x²+4x+4 = 0
⇛ x²+2x+2x+4 = 0
⇛ x(x+2)+2(x+2) = 0
⇛ (x+2)(x+2) = 0
⇛ x+2 = 0
⇛ x = -2
Answer:
Part 1) The vertical intercept is the point (0,9,000)
Part 2) The horizontal intercept is the point (15,0)
Step-by-step explanation:
we have
Let
s(t) ----> the dependent variable or output value (the y-coordinate)
t ---> the independent variable or input value (the y-coordinate)
Part 1) Find the vertical intercept
The vertical intercept is the value of s(t) when the value of t is equal to zero
so
For t=0
substitute in the linear equation
therefore
The vertical intercept is the point (0,9,000)
Part 2) Find the horizontal intercept
The horizontal intercept is the value of t when the value of s(t) is equal to zero
so
For s(t)=0
substitute in the linear equation
therefore
The horizontal intercept is the point (15,0)