Question

The scatter plot shows the linear model for Variable A and Variable B.

What is a possible value for Variable B when Variable A is 40?

???

http://static.k12.com/calms_media/media/1549000_1549500/1549027/1/9cd4eb2f2808e4e91821f803806493dd98013d3f/MS_IMC-141015-1081510.jpg

Answer 1

@shawmoes

Answer 2

@StudyGurl14

Answer 3

@KyanTheDoodle

Answer 4

first find the slope of the line using points (10,20) and (70,80)

Answer 5

Is my slope 10?

Answer 6

@StudyGurl14

Answer 7

I actually got a slope of 1.

Answer 8

\(\Large\frac{80-20}{70-10}=\frac{60}{60}=1\)

Answer 9

Oh .-. okay

Answer 10

anyway, now find teh equation of the line
y = mx + b
y = x + b

(10,70)
(70) = (10) + b
solve for b

Answer 11

60?

Answer 12

yep. so the equation is
y = x + 60

Now plug in 40 for x, and solve for y

Answer 13

100?

Answer 14

yep. the end

Answer 15

So 100 is my answer?

Answer 16

???? @StudyGurl14

Answer 17

yes