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Gennadij [26K]
3 years ago
10

Does the point (-2, -5) satisfy the equation y = x − -3?

Mathematics
2 answers:
Fed [463]3 years ago
6 0

Answer:

Yes

Step-by-step explanation:

To determine if (- 2, - 5) is a solution to the equation.

Substitute x = - 2 into the right side of the equation and if the value obtained is equal to the y- coordinate of the point then it is a solution.

y = - 2 - 3 = - 5 ← hence (- 2, - 5) is a solution to the equation

Verizon [17]3 years ago
4 0
No because (-2, -5) is negative and the y coordinate needs to be positive.
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3 years ago
P (2, 3) and Q (6, 10) are two points on the Cartesian plane.
lara31 [8.8K]

Step-by-step explanation:

Given:

(x_1, \: y_1 ) =(2, \:3)\:\:\&\:\: (x_2, \: y_2) =(6, \:10)

l(PQ) =  \sqrt{ {(x_1 - x_2)}^{2} +  {(y_1 - y_2)}^{2}}  \\  \\  = \sqrt{ {(2 - 6)}^{2} +  {(3 - 10)}^{2}} \\  \\  = \sqrt{ {( - 4)}^{2} +  {( - 7)}^{2}}  \\  \\  =  \sqrt{16 + 49}  \\  \\  =  \sqrt{65}  \\  \\ \therefore \purple{ \boxed{  l(PQ) = 8.06 \: units}}\\\\

Let S be the mid-point of PQ.

\therefore S = \{\frac{x_1+x_2}{2}, \:\:\frac{y_1+y_2}{2}\} \\\\= \{\frac{2 +6}{2}, \:\:\frac{3+10}{2}\} \\\\= \{\frac{8}{2}, \:\:\frac{13}{2}\} \\\\\therefore S= \{4, \:\:6.5\} \\\\

Equation of line PQ is given as:

\frac{y-y_1}{y_1 - y_2}=\frac{x-x_1}{x_1 - x_2} \\\\\therefore  \frac{y-3}{3 - 10}=\frac{x-2}{2 - 6} \\\\\therefore  \frac{y-3}{-7}=\frac{x-2}{-4} \\\\\therefore  \frac{y-3}{7}=\frac{x-2}{4} \\\\\therefore 4(y-3)=7(x-2)\\\\\therefore 4y-12=7x-14\\\\\therefore 7x-14 - 4y + 12=0\\\\\red{\boxed {\therefore 7x-4y - 2 =0}}

4 0
3 years ago
Read 2 more answers
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