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Pachacha [2.7K]
3 years ago
13

What is the equation of this line?

Mathematics
2 answers:
kari74 [83]3 years ago
7 0

Answer:

All you have is the y intercept ( the point at which the graph crosses the y-axis

Step-by-step explanation:

but you need further information

Lets suppose y= mx + c , you know that y = -2 at a certain point.

-2 = mx + c

to calculate the slope m , you need to know 2 points (x1,x2) , (y1, Y2)

QveST [7]3 years ago
6 0

Answer:

y = (1/2)x - 3     Answer A is closest.  

Step-by-step explanation:

Two points on the line are (0, -3) and (4, -1).  Notice that I've intentionally chosen "nice" points whose coordinates are integers; this makes the math easier.  The point (1, -5/2) is also on the line if you want to use it, but the math's a bit more complicated.

Going from (0, -3) to (4, -1), x increases by 4 and y increases by 2.  Hence, the slope of this line is m = rise / run = 2/4, or m = 1/2.

The slope-intercept formula for the equation of a straight line is the most convenient to use here, since we can tell immediately from the graph that the y-intercept is (0, -3):

y = (1/2)x - 3

Answer A should be y = (1/2)x - 3 for improved legibility.  1 2 x is not correct as a way to express (1/2)x.

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Les baked 48 cookies for the bake sale at school, and sold 36 of them. in fraction form, how many cookies did Les have left?
inna [77]

Answer:

Les sold 36 of 48.

          36/48

Step-by-step explanation:

36 over 48  reduces to 3/4.

 

she sold 3/4 of the cookies.

4 0
3 years ago
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29) Find the area of a right triangle with a base of 22 cm and height of 10 cm.
Arte-miy333 [17]

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110 cm²

Step-by-step explanation:

The area of a triangle is 1/2 times base times height.

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7 0
3 years ago
Mr.evans is paid $9.20 per hour for the first 40 hours he works in a week. He is paid 1.5 times that rate for each hour after th
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360.8
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8 0
4 years ago
What is the answer to: 7(w+2)+0.5w=5
Zepler [3.9K]
First, distribute the 7:

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7.5w + 14 = 5

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The answer is -1.2
6 0
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