We notice that the number of pages read is a function of the number of days:
If y is the # of pages read and x the # days, so the equation becomes:
y = m.x + b where m is the rate of reading or the slope and b a constant. How to calculate m? and later b
Note that we can rewrite the given as:
x| 0 | 2 | 5 | 7 |
-|------|-----|-----|------|
y| 57 | 99|162 |204 |
m= (y₂-y₁)/(x₂-x₁) = Rise/Run
m= (204-162)/(7-5) = (162-99)/(5-2) = (99-57)/(2-0) = 21
Then
m = 21 and the function y = 21.x +b
We notice in the table that when x = 0; y = 57, then
57 = 0.x + b that means b = 5 and the final equation is:
y = 21.x + 57
Answer:
graph starts high and ends high
Answer:
3600
Step-by-step explanation:
0.015 or 3/200
15 divided by 1000 is 0.015
15/5 is 3 1000/5 is 200
Answer:
120 sq. in
Step-by-step explanation:
perimeter = 44 inches
length is half the width + 7
a = length
b = width
a + a + b + b = 44
a + b = 22
a + b/2 = 7
b + b/2 + 7 = 22
b + b/2 = 15
2b + b = 30
a = 12
b= 10
area = a x b
area = 120 square inches