3 years ago

How do I find a slope of a line?

2 answers:

7 0

Answer:The slope of a line characterizes the direction of a line. To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points .

Step-by-step explanation:

kykrilka [37]3 years ago

3 0

You can use the formula y=mx+b!

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3 years ago

What is the multiple zero and multiplicity of f(x) = x3 + 10x2 + 25x?

elena-s [515]

Answer:

The multiple zero is $x=-5$ .

The multiplicity is 2

Step-by-step explanation:

The given function is

$f(x)=x^3+10x^2+25x$

To find the zero of this function, we equate it to zero.

$\Rightarrow x^3+10x^2+25x=0$

We factor to obtain;

$x(x^2+10x+25)=0$

Observe that; the expression within the parenthesis is a perfect square.

This implies that;

$x(x+5)^2=0$

This implies that;

Either $x=0$ or $(x+5)^2=0$

$(x+5)^2=0$ has a multiple zero which is

$x=-5$ and its multplicity is 2.

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3 years ago

Ed spent 8.5% of his savings on lunch, which cost $5.25. How much did he have in saving before lunch

yanalaym [24]

8.5/100=5.25/x
cross multiply
5.25×100=8.5x
525/8.5=x
$61.76=x

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3 years ago

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