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3 years ago

Need help with a,b,c please

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

4 0

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

b. The slope is 3. It is the ratio of rise to run.

c. The y-intercept is 0. It is the y-coordinate of the point where the line crosses the y-axis.

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