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AlladinOne [14]

2 years ago

9

Write the equation of the line that passes through the points (1,-7)(1,−7) and (-6,-9)(−6,−9). Put your answer in fully reduced

point-slope form, unless it is a vertical or horizontal line.

2 answers:

BlackZzzverrR [31]2 years ago

7 0

Answer:

6x+6)(6+4)

Step-by-st(ep explanation:

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ruslelena [56]2 years ago

5 0

Answer:

y+7=2/7x-2/7

Step-by-step explanation:

So we first want to find the slope. It's calculated by taking the difference in y values and dividing it by the difference in x values.

-9-(-7)/-6-1

=-9+7/-7

=-2/-7

=2/7.

This is the m in the point-slope equation.

Next, we just plug in the points. We only need 1 point so I will use the (1,-7)

y-y1=m(x-x1)

y-(-7)=2/7(x-1)

y-(-7)=2/7x-2/7

y+7=2/7x-2/7

I've never really seen fully reduced point-slope form, but I'm assuming the above is it because if I keep simplifying it's going to turn into slope-intercept form.

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Can anyone help me convert this to standard form? It can’t have decimals or fractions.

Allisa [31]

Find b of y = mx + b first using a modified version of the equation.

b = y - mx
b = -1 -(1.2×-3)
b = 13/5 = 2.6

y = 1.2x + 2.6 ← result of substituting values of m and b into y = mx + b

-1.2x + y = 2.6 ← result of subtracting 1.2x from both sides

12x - 10y = -26 ← result of multiplying previous equation by -10

6x - 5y = -13 ← result of dividing previous equation by 2

ANSWER: 6x - 5y = -13

5 0

3 years ago

1) Graph the following lines and using the graph determine several values of x for which the graph is positive (negative):

Aleksandr [31]

1) $y=-0.5x-2$

The graph of the above equation is attached in the attachment below.

For all the values from negative infinity to -4, the function is positive.

X ∈ (-∞,-4]

2) $y=-1.5x+3$

To find the x- intercept, plug y =0

$0=-1.5x+3$

$1.5x=3$

$x=2$

x intercept = (2,0)

To find the y- intercept, plug x=0

$y=-1.5(0)+3$

$y=3$

Y- intercept = ( 0,3)

3) $y=13-x$

Y- intercept = (0,13)

x- intercept = (13,0)

Area of triangle = $\frac{bh}{2}$

Area of triangle = $\frac{13\times13}{2}$

Area = $\frac{169}{2}$ sq unit.

4) The graphs of $y=-2x+7$ and $y=0.5x-5.5$ is attached in the attachment below.

The intersection point is ( 5,-3)

5) A = (-3,0)

B = (4,5)

C = (0,-4)

Slope of AB = $\frac{5-0)}{4-(-3)} =\frac{5}{7}$

Slope intercept of line $y=mx+b$

Where, m is the slope and b is the y- intercept.

Plugging point A and the slope in the y- intercept to find the value of b.

$0=\frac{5(-3)}{7} +b$

$b=\frac{15}{7}$

Equation of line AB: $y=\frac{5x}{7} +\frac{15}{7}$

Slope of BC = $\frac{-4-5}{0-4} =\frac{9}{4}$

Plug C = (0,-4)

$-4=0+b$

b=-4

equation of line BC= $y=\frac{9x}{4} -4$

Slope of line AC = $\frac{-4-0}{0--3} =\frac{-4}{3}$

Equation of line AC = $y=\frac{-4x}{3} -4$

Y intercept of AB = $(0,\frac{15}{7} )$

5 0

3 years ago

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stellarik [79]

Answer:

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Step-by-step explanation:

3*2=6

2pi/2=pi

8 0

3 years ago

Patrick earns $40 per hour. He earned an extra $1000 for working on a special project. His pay check for the month was 7420. How

Likurg_2 [28]

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3 0

3 years ago

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Which of these is a solution to the equation 1/8=2/5times x

Mumz [18]

15/16 as a fraction or 3.125 as a decimal

5 0

2 years ago

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