(2) a) Complete the table of values for y = x2 + x - 4
-2 -1 0 1 2 3
y
Х
-3
Tout
+A
+B
b) Which curve, A, B, C or D
is the graph of
y = x2 + x - 4? (1)
5
+C
+D
-1
a
2
Х
c) Use the graph to estimate
both solutions to
x2 + x - 4 = 0 (2)
--5
Total marks: 5

4

step-by-step explanation:

6 spoons of sugar for every 21 cups of flour

step-by-step explanation:

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33