Break it up into 2 triangles. base is 4.5, hypotenuse is 9
4.5^2+b^2=8120.25+b^2=81b^2=60.75
h=7.794228634059948
Answer:
53&8
Step-by-step explanation:
38-23=15
23+15+15=53
23-15=8
Answer:
a^2+b^2=c^2
Step-by-step explanation:
You can apply this formula to any quadratic equation.
Answer:
I think it is 7x+5y=40. Tell me if I'm right because don't think I am.
Step-by-step explanation:
Answer:
![y=3x-4](https://tex.z-dn.net/?f=y%3D3x-4)
Step-by-step explanation:
Hi there!
Slope-intercept form:
where <em>m</em> is the slope and <em>b</em> is the y-intercept (the value of y when x=0)
<u>1) Determine the slope (</u><u><em>m</em></u><u>)</u>
where two points that fall on the line are
and ![(x_2,y_2)](https://tex.z-dn.net/?f=%28x_2%2Cy_2%29)
On the graph, two points are highlighted for us: (0,-4) and (2,2). Plug these into the formula:
![m=\displaystyle\frac{2-(-4)}{2-0}\\\\m=\displaystyle\frac{2+4}{2}\\\\m=\displaystyle\frac{6}{2}\\\\m=3](https://tex.z-dn.net/?f=m%3D%5Cdisplaystyle%5Cfrac%7B2-%28-4%29%7D%7B2-0%7D%5C%5C%5C%5Cm%3D%5Cdisplaystyle%5Cfrac%7B2%2B4%7D%7B2%7D%5C%5C%5C%5Cm%3D%5Cdisplaystyle%5Cfrac%7B6%7D%7B2%7D%5C%5C%5C%5Cm%3D3)
Therefore, the slope of the line is 3. Plug this into
:
![y=3x+b](https://tex.z-dn.net/?f=y%3D3x%2Bb)
<u>2) Determine the y-intercept (</u><u><em>b</em></u><u>)</u>
![y=3x+b](https://tex.z-dn.net/?f=y%3D3x%2Bb)
Recall that the y-intercept occurs when x=0. Given the point (0,-4), the y-intercept is therefore -4. Plug this into
:
![y=3x+(-4)\\y=3x-4](https://tex.z-dn.net/?f=y%3D3x%2B%28-4%29%5C%5Cy%3D3x-4)
I hope this helps!