Me with multiple choice algebra question :
in a sample of 150 cars, 18 cars failed a safety inspection. the sampling method had a margin of error of 0.02.

what is the interval estimate for the proportion that would fail in the form (lower limit, upper limit) ?

a) (0.10,0.14)

b) (0.12,0.16)

c) (0.07,0.11)

d) (0.13,0.17)

so then what are you asking?

step-by-step explanation:

slope =   (y2 -y1) ÷ (x2 -x1)

slope = (0 -0) / (-5, -7)

slope = 0 / -12 = 0

the slope of the line is zero.   it is perfectly horizontal.

step-by-step explanation:

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x