9514 1404 393
Answer:
a) y = 0 +3x
b) 3; the line rises 3 units for each unit to the right
c) (0, 0); the line crosses the y-axis at y=0
Step-by-step explanation:
a. The y-intercept is the point on the y-axis where the line crosses. That point is (0, 0). The y-coordinate there is the value of b in the equation.
The slope is the ratio ...
m = rise/run
The points marked are separated by 3 units vertically for each 1 unit horizontally. Points on the right are above those on the left, so the "rise" is positive for a positive "run".
m = 3/1 = 3
Then the equation is ...
y = 0 + 3x
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b. The slope is 3. It is the ratio of rise to run.
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c. The y-intercept is 0. It is the y-coordinate of the point where the line crosses the y-axis.
The mobile company charges $3 for an hour of service.
Answer:
Either 3/80 grams or 0.0385 grams
Step-by-step explanation:
1 tablet = 1/40 of a gram
1/40 of a gram = 1 ÷ 40 = 0.025 grams
1 tablet = 0.025 grams
1.5 tablets = x
1/1.5 = 0.025 / x Cross multiply
x*1 = 0.025 * 1.5 Combine the factors
x = 0.0375 grams Convert to a fraction
0.0375 = 3/80
The two plans cost the same at 450miles.
The cost is $118.50 when the two plans cost the same.
Working is in the photo.
That's pretty much a tricky question though
