What is the slope intercept form of (5,4) and (-1,-4)

y=4/3x-8/3

Step-by-step explanation:

Slope-intercept form is y=mx+b.

Solve for m (the slope) first.

m=4/3

(you can use the points to solve for slope)

The y-intercept is -8/3 (as seen on the graph)

y=4/3x-8/3

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.