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-BARSIC- [3]
3 years ago
7

What is the standard form of a line with the x intercept of 4 and y intercept of -2?

Mathematics
1 answer:
earnstyle [38]3 years ago
3 0

Answer:

x-2y=4

Step-by-step explanation:

So from the question we know the following:

When something is x intercept it means y=0 so we have (4,0)

When something is y intercept it means x=0 so we have (0,-2)

Now you use these to find the slope using the formula m= (y2-y1)/(x2-x1)

Plug in the values

m= (-2-0)/0-4)

m=(-2/-4)

m= 1/2

x-2y=4

Now you just plug this in slope intercept form y=mx+c, where c is y intercept

y=1/2 x -2

Standard form: ax+by=c

y=1/2 x -2 (rearrange to match the above equation)

-1/2 x +y =-2 (multiply both sides by 2 because we can't have a fraction for a in the standard form)

-1x+2y=-4 (now multiply both sides by -1 because a cannot be negative)

x-2y=4

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Answer:

6a + 13

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6a + 13

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Deductions this Week: Federal Tax $52.02, FICA $33.02, State $5.33. Find the annual Federal Tax deduction
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Answer:

The annual federal tax deduction is $2705.04 .

Step-by-step explanation:

As given deduction in a week

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As there are 52 weeks in a week.

Thus

Annual Federal Tax deduction = Total number of weeks in a year ×  Federal Tax  deduction in week

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Therefore the annual federal tax deduction is $2705.04 .

                                       


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3 years ago
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The answer is 70 the third option.
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Find a quadratic polynomial the sum and product of whose zeroes are -8 and 12 respectively. Hence find the zeroes.
Olenka [21]

Step-by-step explanation:

We khow the sum and the product of the zeroes of this quadratic polynomial

Here is a trick :

when we khow the sum S and the product P ofvtwo numbers we can find them by solving :

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here S= -8 and P=12

so:

x²+8x+12=0

Let Δ be the discrminant of this equation: a= 1 , b= 8 and c=12

Δ= 8²-4*12 =16

the zeros are:

(-8-4)/2= -6

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verify:

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