A tray of lasagna for 4 people is 19 cm wide, 24cm long, and 7 cm deep.
a) Suppose the length and width of
the tray are doubled. How many
people should this new tray feed?
Explain your answer.
Include a diagram.
b) suppose each dimension of the tray is doubled. how many people should the larger tray feed? justify your answer.

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

is there a graph

step-by-step explanation:

divide the numbers

step-by-step explanation:

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14