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Vadim26 [7]
3 years ago
13

Write an equation in slope-intercept form for the line with slope 7 and y-intercept -7 .

Mathematics
1 answer:
melomori [17]3 years ago
3 0
Y=7x-7

The slope intercept form would be y=Mx+b

The m in the equation is the slope
The b in the equation is the y-intercept

You can substitute these values in the intercept form.

y=Mx+b
y=(7)x+(-7)
y=7x-7
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Complete the solution of the equation find the value of y when x equals 2. -8x - 5y = -1
tatuchka [14]

Answer: y = -3

<u>Step-by-step explanation:</u>

-8x - 5y = -1

<u>+8x        </u>  <u>+8x </u>

       -5y = 8x  - 1

       <u> ÷-5 </u> <u> ÷-5</u>  <u>÷-5</u>

           y = -\frac{8}{5}x + \frac{1}{5}

       y(2) = -\frac{8}{5}(2) + \frac{1}{5}

               = -\frac{16}{5} + \frac{1}{5}

               = -\frac{15}{5}

                = -3

6 0
4 years ago
Solve the inequality 171 &gt; -6x, and graph the solution. What does the graph look like?
NARA [144]

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Step-by-step explanation:

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3 years ago
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anyanavicka [17]

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16.8 + (-18.6)

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8 0
3 years ago
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Eli and Karl each throw a basketball straight up in the air at the same time. Eli is standing on a deck and the height of his ba
tino4ka555 [31]
We are to find the time at which the height of basketball thrown by Eli and Karl is equal. We have the functions which model the heights of both basketballs. So by equating the functions representing the height of both basketballs we can find the value of x from that equation at which the height is same for both basketballs.

-4.9 x^{2} +12x+2.5=-4.9 x^{2} +14x \\  \\ &#10;12x+2.5=14x \\  \\ &#10;2.5=2x \\  \\ &#10;x=1.25

Thus after 1.25 seconds the height of basketballs thrown by Eli and Karl will be at the same height. This can be verified by finding the heights of both at x=1.25

For Eli:
Height=f(1.25)=-4.9 (1.25)^{2}+12(1.25)+2.5=9.84375

For Karl:
Height=f(1.25)=-4.9 (1.25)^{2}+14(1.25)=9.84375

Thus height of both basketball is equal after 1.25 seconds


5 0
3 years ago
Read 2 more answers
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stepan [7]

Answer: \sqrt{73} for number 7

Step-by-step explanation:

a²+b²=c²

3²+8²=c²

9+64=c²

\sqrt{73}=\sqrt{c^2}\\\sqrt{73}=c

8 0
3 years ago
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