Leon correctly found the slope and y-intercept of the line that passes through the points (9, –8) and (3, 4) as follows. m = StartFraction negative 8 minus 4 Over 9 minus 3 EndFraction = StartFraction negative 12 Over 6 EndFraction = negative 2. y = negative 2 x + b. Negative 8 = negative 2 (9) + b. Negative 8 = negative 18 + b. 10 = b.

What is the equation of the line in slope-intercept form?

i think it is 18

step-by-step explanation:

ans789

step-by-step explanation:

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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