The dot plot shows the number of books read by students in grades 7 and 8 as part of a summer reading program. Match each phrase to its correct value. answers available:
6 : 5 : 4 : 3 : 1.76 : 1.52 : 1.5 : 1.4 : 1/6 : 2/3

1. the average number of books read by students in grade 7 =

2. the average number of books read by students in grade 8 =

3. the mean absolute deviation for books read by students in grade 7=

4. the mean absolute deviation for books read by students in grade 8 =

5. the difference of the average number of books as a multiple of the mean absolute deviation for grade 8 =
​

.

step-by-step explanation:

.

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

↓↓↓↓↓↓↓↓↓

step-by-step explanation:

this is a parabola.