Sobksb Maths Initial Assessment Question 11
Compare the table and the scatter diagram and select all of the points that have been plotted incorrectly.
Temperature influences on ice cream sales
0
Temperature
5
10
15
20
25
Ice cream sales
0
10
10
40
60
120
Ice Cream Sales
140
0
120
5
100
10
80
O O O O O O
260
40
20
0
5
10
15
20
25
30
Temperature (°C)
Claudia Oliveira
COliveira

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.

they are simplified

step-by-step explanation:

it is impossible.