11 (a) If x² + 4x - 3 = (x + a)² + b for all possible values of x, find a and b.

(b) If y = x² + 4x - 3 , state the minimum value of y, and the value of x at which this minimum occurs.

(c) Sketch the graph of y = x² + 4x - 3 .
Try to use your answer to part (a) to calculate the co-ordinates of all intersections with the axes.

555.99.

step-by-step explanation:

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the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.

irrational, cannot