Hi there! The answer is -2.
We can find the slope of a formula by using the following formula:
![slope = \frac{change \: of \: y}{change \: of \: x} =\frac{y2 - y1}{x2 - x1}](https://tex.z-dn.net/?f=slope%20%3D%20%5Cfrac%7Bchange%20%5C%3A%20of%20%5C%3A%20y%7D%7Bchange%20%5C%3A%20of%20%5C%3A%20x%7D%20%3D%5Cfrac%7By2%20-%20y1%7D%7Bx2%20-%20x1%7D)
x2 and y2 don't mean squared, but the x and y coordinate of our second point.
First we need to find two points on the line. Ijn this particular case we have (-3, 3) and (1, -5). Now we can fill in the formula.
![slope = \frac{ - 5 - 3}{1 - - 3} = \frac{ - 8}{4} = - 2](https://tex.z-dn.net/?f=slope%20%3D%20%5Cfrac%7B%20-%205%20-%203%7D%7B1%20-%20-%203%7D%20%3D%20%5Cfrac%7B%20-%208%7D%7B4%7D%20%3D%20-%202)
Therefore, the third answer is correct.
~ Hope this helps you!
Answer: x=4 and y= 3
Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation
Answer:
Step-by-step explanation:
![25 {x}^{2} - 36 \\ = ( {5x})^{2} - ( {6})^{2} \\](https://tex.z-dn.net/?f=25%20%7Bx%7D%5E%7B2%7D%20%20-%2036%20%5C%5C%20%20%3D%20%28%20%7B5x%7D%29%5E%7B2%7D%20%20-%20%28%20%7B6%7D%29%5E%7B2%7D%20%20%5C%5C%20)
there is not enough info given to tell how long it would take