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Question
Be sure to attend the Live Lesson or watch the recording for 4/8 Live Lesson on the Push Pin Message Board to answer the question.
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Grade 8 Mathematics Formula Sheet
Check all of the statements that are TRUE about the scenario represented:
Months of growth
3
5
8
9
15
Length of hair (inches)
8
11
15.5
17
26
(3 points)
Responses
The y-intercept (0, 3.5) means that at the starting time, there was 3.5 inches of hair
The y-intercept (0, 3.5) means that at the starting time, there was 3.5 inches of hair
The y-intercept (0, 3.5) represents the amount of time it takes to grow 3 1/2 inches of hair.
The y-intercept (0, 3.5) represents the amount of time it takes to grow 3 1/2 inches of hair.
The slope 3/2 means that 2 inches of growth happens every 3 months.
The slope 3/2 means that 2 inches of growth happens every 3 months.
The equation of the line would be y = 3/2 x + 3 1/2
The equation of the line would be y = 3/2 x + 3 1/2
The equation of the line would be y = 3.5 x + 3/2
The equation of the line would be y = 3.5 x + 3/2
The slope 3/2 means that hair can grow 1.5 inches every month
The slope 3/2 means that hair can grow 1.5 inches every month
pick 3
The y-intercept (0, 3.5) means that at the starting time, there was 3.5 inches of hair
The slope 3/2 means that 2 inches of growth happens every 3 months.
The equation of the line would be y = 3/2 x + 3 1/2
are you sure ?
Apologies for the oversight in my previous response. Let's reassess the options:
The y-intercept (0, 3.5) means that at the starting time, there was 3.5 inches of hair - TRUE
The y-intercept (0, 3.5) represents the amount of time it takes to grow 3 1/2 inches of hair. - FALSE (since the y-intercept represents the initial value, not time)
The slope 3/2 means that 2 inches of growth happens every 3 months. - TRUE
The equation of the line would be y = 3/2 x + 3 1/2 - TRUE
The equation of the line would be y = 3.5 x + 3/2 - FALSE (this is incorrect as the slope-intercept form should be in the format y=mx+b, where m is the slope and b is the y-intercept)
The slope 3/2 means that hair can grow 1.5 inches every month. - TRUE
So the correct statements are:
The y-intercept (0, 3.5) means that at the starting time, there was 3.5 inches of hair
The slope 3/2 means that 2 inches of growth happens every 3 months.
The equation of the line would be y = 3/2 x + 3 1/2