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3 years ago

Write an equation for a linear function whose graphs has the given characteristics. Passes through (-2,2) and (2,-8)

1 answer:

5 0

(-2,2)(2,-8)
slope = (-8 - 2) / (2 - (-2) = -10/4 = -5/2

y = mx + b
slope(m) = -5/2
(-2,2)...x = - 2 and y = 2
now we sub and find b, the y int
2 = -5/2(-2) + b
2 = 5 + b
2 - 5 = b
-3 = b

so ur equation is : y = -5/2x - 3

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50 POINTS!! EASY!

frosja888 [35]

9514 1404 393

Answer:

y = -16
x = 10

Step-by-step explanation:

The direct proportion equation is ...

y = kx

where k is the constant of proportionality. Here, you're told k=-2, so the equation is ...

y = -2x

For x=8, the value of y is ...

y = -2(8) = -16 . . . . . do the multiplication

For y = -20, the value of x is ...

-20 = -2x

10 = x . . . . . . . . . divide both sides by -2

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2 years ago

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Please help me with 13-20 but I need help with 13-18 to find x because its hard for me and 19-20 to find BC and find triangle PQ

AveGali [126]

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3 years ago

Answer quick please.

olchik [2.2K]

5/2 = 2.5

4/16 = 0.25

2.5/0.25 = 10

Your answer would be 10

hope it helps!

6 0

3 years ago

The Hawks have won 12 games which is 60% of the games they have played this season how many games have the Hawks played this sea

Usimov [2.4K]

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Let x = total games played.

12 = 0.60x. Divide each side by 0.60.

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2 years ago

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9)<br> 5.6 yd<br> 5 yd<br> 12 yd<br> Find the area. (A = 1/2 ( 61 + b2) h)

krek1111 [17]

Answer:

Area, A = 63.6 square yards

Step-by-step explanation:

A trapezoid refers to a quadrilateral that is convex in shape; as such it has no equal sides and no parallel sides.

Let the height of a trapezoid be h.

Let the top base of a trapezoid be b1.

Let the bottom base of a trapezoid be b2.

$Area \; of \; trapezoid = \frac {1}{2} * (Sum \; of \; nonparallel \; sides) * height$

Therefore, $Area \; of \; trapezoid = \frac {1}{2} * (b_{1} + b_{2}) * h$

Given the following data;

Length, b1 = 5 yards

Width, b2 = 5.6 yards

Height, h = 12 yard

To find the area of geometrical shape (trapezoid), we would use the above formula;

A = 1/2 (b1 + b2) * h

Substituting into the formula, we have;

A = ½ * (5 + 5.6) * 12

A = ½ * (10.6)*12

A = 5.3 * 12

Area, A = 63.6 square yards

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3 years ago