esn't depend on the exit condition solely. The more acute the angle between lines, the worse the possible error would be.";
        document.getElementById("buttons_quest_7").style.display = 'none';
        quests[6] = 1;
    } else {
        document.getElementById("reply_quest_7").innerHTML = "That's still less than 6.0.";
    }
}

function done_system_4_quest_8() {
    var q101 = Math.abs(solver_1_eq_1[0] / solver_1_eq_1[1]);
    var q110 = Math.abs(solver_1_eq_1[1] / solver_1_eq_1[0]);
    var q201 = Ma