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3 years ago

how do i graph this? like y=2(10)+9=29. how am I suppose to graph that. there are only 20 spots on graph

Mathematics

1 answer:

horrorfan [7]3 years ago

3 0

Use the slope-intercept form to find the slopeand y-intercept.

Slope: 2

Y-Intercept: 9

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The equation of a circle is ( x - 3) 2 + ( y + 2) 2 = 25. The point (8, -2) is on the circle.

Shtirlitz [24]

Answer:

x =8 is the equation of the tangent.

Step-by-step explanation:

Here the equation of the given circle is: $(x-3)^{2} + (y+2)^{2} = 25$

Now, comparing it with the general equation of circle: $(x-h)^{2} + (y -k)^{2} = r^2$

we get the central coordinates (h,k) = (3,-2)

So, the slope of the line joining center and (8, -2) = $\frac{-2 -(-2)}{8-3} = \frac{0}{5} = 0$

Since the slope of line = 0, line is parallel to x axis.

Now, as tangent and the line is perpendicular to each other

⇒Slope of the tangent = -1/ slope of the line = $\frac{-1}{0}$

Now, by point slope formula: the equation of the tangent is

(y-y0) = m (x-x0)

or, $(y +2) = \frac{-1}{0} (x -8)$

or x =8 is the equation of the tangent.

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snow_tiger [21]

Answer:

X $\geq$ 2

Step-by-step explanation:

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3 years ago

What is the difference between the number of solutions for a two-step equation and for a two-step inequality

Sophie [7]

Answer:

A two-step equation is something like:

A*X + B = C

In this case, like in a linear equation, we have only one solution that can be found as:

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In the case of a two-step inequality, we have something like:

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In this case, any value of X that is larger than (C - B)/A is a solution, so in this case, we have infinite solutions.

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