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soldi70 [24.7K]
2 years ago
5

Which equation represents a line that passes through (4,1/3)and has a slope of 3/4

Mathematics
1 answer:
Cloud [144]2 years ago
3 0

Answer:

y = \frac{3}{4} x + \frac{-8}{3} or 12y = 9x -32 or y - 1/3 =3/4(x-4)

Step-by-step explanation:

The equation of a line in the slope-intercept form is y=mx+b where m is the slope and b is the y-intercept.

The other form is the point-slope form where the point (x₁, y₁)  and a slope m are given, and you  have to plug it into formula:

y – y₁ = m(x – x₁)

Here:

y - 1/3 =3/4(x-4)multiply both sides by 12 to loose fraction

12y -4 = 9(x-4) distribute

12y -4  = 9x -36 add 4 on both sides

12y = 9x -32 divide by 12

y = \frac{9}{12} x + \frac{-32}{12} simplify factions

y = \frac{3}{4} x + \frac{-8}{3}

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The perimeter of the isosceles ?ABC with the base BC is equal to 40 cm. Perimeter of the equilateral ?BCD is 45 cm. Find AB and
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<u>Step-by-step explanation:</u>

Perimeter of ΔBCD = BC + CD + BD. Since it is an isoceles triangle, then BC = CD = BD. So, Perimeter of ΔBCD = 3BC

3BC = 45

<u>÷3   </u>    <u>÷3 </u>

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Perimeter of ΔABC = AB + BC + AC.  Since it is an isosceles triangle with BC as the base, then AB = AC. So, Perimeter of ΔABC = 2AB + BC

2AB + BC = 40

2AB + 15 = 40

<u>          -15</u>  <u> -15 </u>

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<u>÷2         </u>   <u>÷2  </u>

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