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allochka39001 [22]
2 years ago
8

OMG HELPP IM GOING TO FAILL!!!!!!!

Mathematics
1 answer:
Murljashka [212]2 years ago
3 0

Answer:

Step-by-step explanation:

Ok, so break this down into each line and Graph

1) pages on the y and days on the bottom (x)

    a) begins at origin, passing through the point (20,200)

200 - 0 / 20 - 0 = 200/20 = 10

therefore this line has a slope of 10

y = 10x

    b) begins at (0,40) [also known as y-intercept], passes through (20,200)

200 - 40/20-0 = 160/20 = 8

Slope = 8

y = 8x +40

Graph is shown at bottom

Repeat the process for the rest

Break it down like this

2) A graph with days on the x axis and number of pages on the y axis.

There are two lines.

One line begins at (0,280) and passes through the point (20,80)

The other line begins at (0,240) and passes through the point (20,80)

80 - 280/ 20 - 0 = Slope 1

80 - 240/ 20 - 0 = Slope 2

(0, #) = y-intercept = #

3) A graph with days on the x axis and number of pages on the y axis.

There are two lines.

One line begins at the origin and passes through the point (25,200).

The other line begins at (5,0) and passes through the point (25,200).

200 - 0/25 - 0 = Slope 1

200 - 0 / 25 - 5 = Slope 2

(0, #) = y-intercept = #

4) A graph with days on the x axis and number of pages on the y axis.

There are two lines.

One line begins at the origin and passes through the point (7,56).

The other line begins at (0,40) and passes through the point (7,56)

56-0/ 7-0 = Slope 1

56-40 / 7-0 = Slope 2

(0, #) = y-intercept = #

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