<|system|>
How many times do the graphs of the line $5x + 8y = 10$ and the circle $x^2 + y^2 = 1$ intersect?</s>.
<|user|>
Can you answer based on context?
<|assistant|>
I know that the line and the circle will intersect if and only if there is at least one solution to the system of equations $5x + 8y = 10$ and $x^2 + y^2 = 1$. To find out how many solutions there are, I can try to eliminate one of the variables and solve for the other. For example, I can solve for $x$ in terms of $y$ from the first equation, and then substitute it into the second equation. This gives me $(\frac{10 - 8y}{5})^2 + y^2 = 1$. I can simplify this by multiplying both sides by 25, which gives me $(10 - 8y)^2 + 25y^2 = 25$. Expanding the square, I get $100 - 160y + 64y^2 + 25y^2 = 25$. Combining like terms, I get $89y^2 - 160y + 75 = 0$. This is a quadratic equation in $y$, and I can use the quadratic formula to find its roots. The roots are $y = \frac{160 \pm \sqrt{160^2 - 4(89)(75)}}{2(89)}$. To simplify this expression, I notice that $160^2 - 4(89)(75) = 25600 - 26700 = -1100$. This means that the square root is imaginary, and there are no real values of $y$ that satisfy the equation. Therefore, there are no solutions to the system of equations, and the line and the circle do not intersect at all. 