Here is the graph of y = x2 - 4x + 3
a) Write down the coordinates
of the turning point on the
graph of y = x2 - 4x + 3 (1)
(
2
-2
a
b) Use the graph to find the roots
of the equation y = x2 - 4x + 3
x
(2)
2
B
-2

With finding limits of multi variable !

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?

Which statement is true about the extreme value of the given quadratic equation? a. the equation has a maximum value with a y-coordinate of -21. b. the equation has a maximum value with a y-coordinate of -27. c. the equation has a minimum value with a y-coordinate of -21. d. the equation has a minimum value with a y-coordinate of -27.