3 years ago

Y=2/5x+2 how do you graph it on a graph

Mathematics

1 answer:

ANTONII [103]3 years ago

8 0

That is how you graph y=2/5x+2 since 2/5 is the slope and 2 is the y intercept.

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Find the x intercept of the parabola with vertex 3,-2 and y intercept 0,7 round to the nearest hundredth

12345 [234]

An x-intercept is namely a "solution" or "zero" or "root" often called, and when that happens, y = 0, just like with any other x-intercept.

$\bf ~~~~~~\textit{parabola vertex form}
\\\\
\begin{array}{llll}
\boxed{y=a(x- h)^2+ k}\\\\
x=a(y- k)^2+ h
\end{array}
\qquad\qquad
vertex~~(\stackrel{}{ h},\stackrel{}{ k})\\\\
-------------------------------\\\\
\begin{cases}
h=3\\
k=-2
\end{cases}\implies y=a(x-3)^2-2
\\\\\\
\textit{we also know that }
\begin{cases}
x=0\\
y=7
\end{cases}\implies 7=a(0-3)^2-2
\\\\\\
9=9a\implies \cfrac{9}{9}=a\implies 1=a\qquad therefore\qquad \boxed{y=(x-3)^2-2}$

so what is its x-intercept anyway?

$\bf \stackrel{y}{0}=(x-3)^2-2\implies 2=(x-3)^2\implies \pm\sqrt{2}=x-3
\\\\\\
\pm\sqrt{2}+3=x\qquad therefore\qquad (\pm\sqrt{2}+3~~~~,~~~~0)$

5 0

3 years ago

1. Given a sequence is defined by the explicit definition tn=n^2+n, find the 4th term of the sequence. (ie t4)

dem82 [27]

Answer:

20,

27,

3,5,9,17,33

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Find the prime factorization of 60, and then write in Standard Form, Expanded Form, and Exponential Form.

Katyanochek1 [597]

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3 years ago

The population of a town was 6,000

Wewaii [24]

Answer: It is expected to increase by 240 people

Step-by-step explanation: 0.04*6000=240

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3 years ago

What is $5.60 for 4 pounds as a unit rate.

Sphinxa [80]

so you can either do pounds per dollar or dollars per pound:

pounds per dollar : about 0.71 lbs / $

dollars per pound : $1.40 / lb

i hope this helped, based on the question i believe that it is dollars per pound but its good to know both and have a nice day

5 0

3 years ago