The findings 20/40 vision in the right eye implies that when Tina is standing at a distance of 20 feet away from the eye chart, she will be able to read with her right eye what a person with normal vision can read from a distance of 40 feet away from the eye chart. Also, Tina has got 20/20 vision in the left eye, this implies that when Tina stands 20 feet from the eye chart , she will be able to read with her left eye what a person with normal vision can read from 20 feet away with the left eye. In conclusion this implies that Tina has normal vision in her left eye but a decreased vision in her right eye.
Y=2240+100x+70x
y=170x+2240
x represents the number of weeks
Multiply x by 100 to get the amount of money saved from his parents
Multiply x by 70 to represent 1/3 of his paycheck each week (210/3)=70
add 2240 because that is how much money there is to begin with in the account(this would be the y-intercept)
x=2.5
Step-by-step explanation:
substitute y for 4 and simplify
The slope would be 0 because the line does not intersect the x - axis.