Given the quadratic function, to get the roots we factorize:
3x²-4x-7=0
3x²+3x-7x-7=0
3x(x+1)-7(x+1)=0
(3x-7)(x+1)=0
thus the roots are
x=-1 or x=3/7
thus the sum of the roots will be:
-1+3/7
=-4/7
Answer:
Length = 6 cm
Width = 4 cm
Area = ?
Area of a rectangle = length (l) × width (w)
Area = 6 × 4
Area = <u>24 cm²</u>
→ The area of the rectangle is <u>2</u><u>4</u><u> </u><u>cm²</u><u>.</u>
Answer:
Infinite number of solutions.
Step-by-step explanation:
y = -7x - 2
y + 3 = -7x + 1
Subtract 3 from both sides:
y = -7x - 2
- this is the same as the first equation.
We can put any number of valid combinations of x and y into this equation.
So there are infinite solutions.
