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Tresset [83]
3 years ago
12

I need help solving this

Mathematics
1 answer:
pentagon [3]3 years ago
5 0
Y=mx+b where m=slope=(dy/dx) and b=y-intercept (value of y when x=0)

You have two points...(1,-2),(3,2) so

m=(y2-y1)/(x2-x1)=(2--2)/(3-1)

m=4/2=2 now that you have the slope...

y=2x+b, you can use either point to solve for the y-intercept, I'll use (3,2)

2=2(3)+b

2=6+b

b=-4 so the line is:

y=2x-4
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What is slope of the line parallel to the line containing points (2,5) and (6,-11)
Ksivusya [100]

The parallel lines have the same slope.

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (2, 5) and (6, -11).

Substitute:

m=\dfrac{-11-5}{6-2}=\dfrac{-16}{4}=-4

6 0
4 years ago
What does the line 5x+2y=8 look like?
Step2247 [10]

Answer:

y=-5/2x+4

Step-by-step explanation:

5x+2y=8

2y=8-5x

2y=-5x+8

y=-5/2x+8/2

y=-5/2x+4

8 0
4 years ago
What is 0.003 is 1/10of
boyakko [2]
0.003 is 1/10 of 0.03.
Just multiply the 0.003 by 10 and you'll get the answer.
6 0
3 years ago
Read 2 more answers
Simplify (2d+3) + (3d-12)
8_murik_8 [283]

Answer:

5d-9

Step-by-step explanation:

add the two sides together. the parentheses don't do anything to the equation really

3 0
3 years ago
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Write the equation of a line that is perpendicular to y=-0.3x+6 and that passes through the point (3,-8)
MariettaO [177]
Hey there!

First, let's look at what perpendicular means. Imagine a cross, where there's all 90 degree angles. That's exactly what we're talking about when we say perpendicular. The given equation is in slope-intercept form, where we have:

y = mx + b
where m is the slope and b is the y-intercept.

When we're writing an equation with a perpendicular slope, we use the negative reciprocal of the given slope. Thus, we can make 0.3 1/3, and take the reciprocal to make 3, and make it negative 3 as it's the negative reciprocal. Now, we know we have a line with the slope of -3 and goes through (-3, 8). We can use the x and y values in this set of points, along with the slope, to create an equation to solve for b. That gives us:

8 = -3(-3) + b
8 = -9 + b
17 = b

Now, since we have slope and y-intercept, we can write our equation as:

y = -3x + 17

Hope this helps!
5 0
3 years ago
Read 2 more answers
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